```
terminate called after throwing an instance of 'std::out_of_range'
what(): _Map_base::at
Thread 1 "kdenlive" received signal SIGABRT, Aborted.
0x00007ffff1e8bd7f in raise () from /usr/lib/libc.so.6
(gdb) thread apply all bt
Thread 66 (Thread 0x7fff437fe700 (LWP 9301)):
#0 0x00007ffff1f44c21 in poll () at /usr/lib/libc.so.6
#1 0x00007ffff0157540 in () at /usr/lib/libglib-2.0.so.0
#2 0x00007ffff015762e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3 0x00007ffff2628ce9 in QEventDispatcherGlib::processEvents(QFlags) () at /usr/lib/libQt5Core.so.5
#4 0x00007ffff25d1b2c in QEventLoop::exec(QFlags) () at /usr/lib/libQt5Core.so.5
#5 0x00007ffff2415569 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6 0x00007ffff241696c in () at /usr/lib/libQt5Core.so.5
#7 0x00007ffff1498a9d in start_thread () at /usr/lib/libpthread.so.0
#8 0x00007ffff1f4fb23 in clone () at /usr/lib/libc.so.6
Thread 65 (Thread 0x7fffa194b700 (LWP 9300)):
#0 0x00007ffff149eef6 in pthread_cond_timedwait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1 0x00007ffff241cbc9 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/libQt5Core.so.5
#2 0x00007ffff241cd07 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/libQt5Core.so.5
#3 0x00007ffff241ac2b in () at /usr/lib/libQt5Core.so.5
#4 0x00007ffff241696c in () at /usr/lib/libQt5Core.so.5
#5 0x00007ffff1498a9d in start_thread () at /usr/lib/libpthread.so.0
#6 0x00007ffff1f4fb23 in clone () at /usr/lib/libc.so.6
Thread 63 (Thread 0x7fff917fa700 (LWP 9248)):
#0 0x00007ffff149eafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1 0x00007fffe1a7650e in () at /usr/lib/mlt/libmltsdl2.so
#2 0x00007ffff1498a9d in start_thread () at /usr/lib/libpthread.so.0
#3 0x00007ffff1f4fb23 in clone () at /usr/lib/libc.so.6
Thread 62 (Thread 0x7fff91ffb700 (LWP 9247)):
#0 0x00007ffff1f44d16 in ppoll () at /usr/lib/libc.so.6
#1 0x00007fffef811a13 in pa_mainloop_poll () at /usr/lib/libpulse.so.0
#2 0x00007fffef811fe0 in pa_mainloop_iterate () at /usr/lib/libpulse.so.0
#3 0x00007fffdb527847 in () at /usr/lib/libSDL2-2.0.so.0
#4 0x00007fffdb47f046 in () at /usr/lib/libSDL2-2.0.so.0
#5 0x00007fffdb4c5f9f in () at /usr/lib/libSDL2-2.0.so.0
#6 0x00007fffdb5496ea in () at /usr/lib/libSDL2-2.0.so.0
#7 0x00007ffff1498a9d in start_thread () at /usr/lib/libpthread.so.0
#8 0x00007ffff1f4fb23 in clone () at /usr/lib/libc.so.6
Thread 61 (Thread 0x7fff927fc700 (LWP 9246)):
#0 0x00007ffff149eafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1 0x00007ffff6f8dbcc in () at /usr/lib/libmlt.so.6
#2 0x00005555559df80d in RenderThread::run() (this=0x7fffb838d3b0) at /home/frd/kdenlive/src/monitor/glwidget.cpp:1575
#3 0x00007ffff241696c in () at /usr/lib/libQt5Core.so.5
#4 0x00007ffff1498a9d in start_thread () at /usr/lib/libpthread.so.0
#5 0x00007ffff1f4fb23 in clone () at /usr/lib/libc.so.6
Thread 60 (Thread 0x7fff92ffd700 (LWP 9245)):
#0 0x00007ffff149eafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1 0x00007fffe1a770df in () at /usr/lib/mlt/libmltsdl2.so
#2 0x00007ffff1498a9d in start_thread () at /usr/lib/libpthread.so.0
#3 0x00007ffff1f4fb23 in clone () at /usr/lib/libc.so.6
--Type for more, q to quit, c to continue without paging--
Thread 59 (Thread 0x7fffb43c9700 (LWP 9244)):
#0 0x00007ffff1f44d16 in ppoll () at /usr/lib/libc.so.6
#1 0x00007fffef811a13 in pa_mainloop_poll () at /usr/lib/libpulse.so.0
#2 0x00007fffef811fe0 in pa_mainloop_iterate () at /usr/lib/libpulse.so.0
#3 0x00007fffef812091 in pa_mainloop_run () at /usr/lib/libpulse.so.0
#4 0x00007fffdb5279b0 in () at /usr/lib/libSDL2-2.0.so.0
#5 0x00007fffdb4c5f9f in () at /usr/lib/libSDL2-2.0.so.0
#6 0x00007fffdb5496ea in () at /usr/lib/libSDL2-2.0.so.0
#7 0x00007ffff1498a9d in start_thread () at /usr/lib/libpthread.so.0
#8 0x00007ffff1f4fb23 in clone () at /usr/lib/libc.so.6
Thread 46 (Thread 0x7fffa394f700 (LWP 8968)):
#0 0x00007ffff1f44c21 in poll () at /usr/lib/libc.so.6
#1 0x00007fffef820673 in () at /usr/lib/libpulse.so.0
#2 0x00007fffef811990 in pa_mainloop_poll () at /usr/lib/libpulse.so.0
#3 0x00007fffef811fe0 in pa_mainloop_iterate () at /usr/lib/libpulse.so.0
#4 0x00007fffef812091 in pa_mainloop_run () at /usr/lib/libpulse.so.0
#5 0x00007fffef8205ae in () at /usr/lib/libpulse.so.0
#6 0x00007fffec83b9fc in () at /usr/lib/pulseaudio/libpulsecommon-12.2.so
#7 0x00007ffff1498a9d in start_thread () at /usr/lib/libpthread.so.0
#8 0x00007ffff1f4fb23 in clone () at /usr/lib/libc.so.6
Thread 45 (Thread 0x7fff3affd700 (LWP 8953)):
#0 0x00007ffff149eafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1 0x00007ffff6f969ec in () at /usr/lib/libmlt.so.6
#2 0x00007ffff1498a9d in start_thread () at /usr/lib/libpthread.so.0
#3 0x00007ffff1f4fb23 in clone () at /usr/lib/libc.so.6
Thread 44 (Thread 0x7fff3b7fe700 (LWP 8952)):
#0 0x00007ffff149eafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1 0x00007ffff6f969ec in () at /usr/lib/libmlt.so.6
#2 0x00007ffff1498a9d in start_thread () at /usr/lib/libpthread.so.0
#3 0x00007ffff1f4fb23 in clone () at /usr/lib/libc.so.6
Thread 43 (Thread 0x7fff3bfff700 (LWP 8951)):
#0 0x00007ffff149eafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1 0x00007ffff6f969ec in () at /usr/lib/libmlt.so.6
#2 0x00007ffff1498a9d in start_thread () at /usr/lib/libpthread.so.0
#3 0x00007ffff1f4fb23 in clone () at /usr/lib/libc.so.6
Thread 42 (Thread 0x7fff40ff9700 (LWP 8950)):
#0 0x00007ffff149eafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1 0x00007ffff6f969ec in () at /usr/lib/libmlt.so.6
#2 0x00007ffff1498a9d in start_thread () at /usr/lib/libpthread.so.0
#3 0x00007ffff1f4fb23 in clone () at /usr/lib/libc.so.6
Thread 41 (Thread 0x7fff417fa700 (LWP 8949)):
#0 0x00007ffff149eafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1 0x00007ffff6f969ec in () at /usr/lib/libmlt.so.6
#2 0x00007ffff1498a9d in start_thread () at /usr/lib/libpthread.so.0
--Type for more, q to quit, c to continue without paging--
#3 0x00007ffff1f4fb23 in clone () at /usr/lib/libc.so.6
Thread 40 (Thread 0x7fff41ffb700 (LWP 8948)):
#0 0x00007ffff149eafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1 0x00007ffff6f969ec in () at /usr/lib/libmlt.so.6
#2 0x00007ffff1498a9d in start_thread () at /usr/lib/libpthread.so.0
#3 0x00007ffff1f4fb23 in clone () at /usr/lib/libc.so.6
Thread 39 (Thread 0x7fff427fc700 (LWP 8947)):
#0 0x00007ffff149eafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1 0x00007ffff6f969ec in () at /usr/lib/libmlt.so.6
#2 0x00007ffff1498a9d in start_thread () at /usr/lib/libpthread.so.0
#3 0x00007ffff1f4fb23 in clone () at /usr/lib/libc.so.6
Thread 38 (Thread 0x7fff42ffd700 (LWP 8946)):
#0 0x00007ffff149eafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1 0x00007ffff6f969ec in () at /usr/lib/libmlt.so.6
#2 0x00007ffff1498a9d in start_thread () at /usr/lib/libpthread.so.0
#3 0x00007ffff1f4fb23 in clone () at /usr/lib/libc.so.6
Thread 36 (Thread 0x7fff43fff700 (LWP 8943)):
#0 0x00007ffff1f44c21 in poll () at /usr/lib/libc.so.6
#1 0x00007ffff0157540 in () at /usr/lib/libglib-2.0.so.0
#2 0x00007ffff015762e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3 0x00007ffff2628ce9 in QEventDispatcherGlib::processEvents(QFlags) () at /usr/lib/libQt5Core.so.5
#4 0x00007ffff25d1b2c in QEventLoop::exec(QFlags) () at /usr/lib/libQt5Core.so.5
#5 0x00007ffff2415569 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6 0x00007ffff35d5e7b in () at /usr/lib/libQt5Quick.so.5
#7 0x00007ffff241696c in () at /usr/lib/libQt5Core.so.5
#8 0x00007ffff1498a9d in start_thread () at /usr/lib/libpthread.so.0
#9 0x00007ffff1f4fb23 in clone () at /usr/lib/libc.so.6
Thread 17 (Thread 0x7fff8e7dc700 (LWP 8776)):
#0 0x00007ffff1f44c21 in poll () at /usr/lib/libc.so.6
#1 0x00007ffff0157540 in () at /usr/lib/libglib-2.0.so.0
#2 0x00007ffff015762e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3 0x00007ffff2628ce9 in QEventDispatcherGlib::processEvents(QFlags) () at /usr/lib/libQt5Core.so.5
#4 0x00007ffff25d1b2c in QEventLoop::exec(QFlags) () at /usr/lib/libQt5Core.so.5
#5 0x00007ffff2415569 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6 0x00007ffff241696c in () at /usr/lib/libQt5Core.so.5
#7 0x00007ffff1498a9d in start_thread () at /usr/lib/libpthread.so.0
#8 0x00007ffff1f4fb23 in clone () at /usr/lib/libc.so.6
Thread 16 (Thread 0x7fff8efdd700 (LWP 8775)):
#0 0x00007ffff1f44c21 in poll () at /usr/lib/libc.so.6
#1 0x00007ffff0157540 in () at /usr/lib/libglib-2.0.so.0
#2 0x00007ffff015762e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3 0x00007ffff2628ce9 in QEventDispatcherGlib::processEvents(QFlags) () at /usr/lib/libQt5Core.so.5
#4 0x00007ffff25d1b2c in QEventLoop::exec(QFlags) () at /usr/lib/libQt5Core.so.5
#5 0x00007ffff2415569 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6 0x00007ffff241696c in () at /usr/lib/libQt5Core.so.5
--Type for more, q to quit, c to continue without paging--
#7 0x00007ffff1498a9d in start_thread () at /usr/lib/libpthread.so.0
#8 0x00007ffff1f4fb23 in clone () at /usr/lib/libc.so.6
Thread 13 (Thread 0x7fffb4d73700 (LWP 8762)):
#0 0x00007ffff1f44c21 in poll () at /usr/lib/libc.so.6
#1 0x00007ffff0157540 in () at /usr/lib/libglib-2.0.so.0
#2 0x00007ffff015762e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3 0x00007ffff2628ce9 in QEventDispatcherGlib::processEvents(QFlags) () at /usr/lib/libQt5Core.so.5
#4 0x00007ffff25d1b2c in QEventLoop::exec(QFlags) () at /usr/lib/libQt5Core.so.5
#5 0x00007ffff2415569 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6 0x00007ffff35d5e7b in () at /usr/lib/libQt5Quick.so.5
#7 0x00007ffff241696c in () at /usr/lib/libQt5Core.so.5
#8 0x00007ffff1498a9d in start_thread () at /usr/lib/libpthread.so.0
#9 0x00007ffff1f4fb23 in clone () at /usr/lib/libc.so.6
Thread 12 (Thread 0x7fffb5fbd700 (LWP 8761)):
#0 0x00007ffff1f44c21 in poll () at /usr/lib/libc.so.6
#1 0x00007ffff0157540 in () at /usr/lib/libglib-2.0.so.0
#2 0x00007ffff015762e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3 0x00007ffff2628ce9 in QEventDispatcherGlib::processEvents(QFlags) () at /usr/lib/libQt5Core.so.5
#4 0x00007ffff25d1b2c in QEventLoop::exec(QFlags) () at /usr/lib/libQt5Core.so.5
#5 0x00007ffff2415569 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6 0x00007ffff3310969 in () at /usr/lib/libQt5Qml.so.5
#7 0x00007ffff241696c in () at /usr/lib/libQt5Core.so.5
#8 0x00007ffff1498a9d in start_thread () at /usr/lib/libpthread.so.0
#9 0x00007ffff1f4fb23 in clone () at /usr/lib/libc.so.6
Thread 11 (Thread 0x7fffb67be700 (LWP 8760)):
#0 0x00007ffff1f44c21 in poll () at /usr/lib/libc.so.6
#1 0x00007ffff0157540 in () at /usr/lib/libglib-2.0.so.0
#2 0x00007ffff015762e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3 0x00007ffff2628ce9 in QEventDispatcherGlib::processEvents(QFlags) () at /usr/lib/libQt5Core.so.5
#4 0x00007ffff25d1b2c in QEventLoop::exec(QFlags) () at /usr/lib/libQt5Core.so.5
#5 0x00007ffff2415569 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6 0x00007ffff35d5e7b in () at /usr/lib/libQt5Quick.so.5
#7 0x00007ffff241696c in () at /usr/lib/libQt5Core.so.5
#8 0x00007ffff1498a9d in start_thread () at /usr/lib/libpthread.so.0
#9 0x00007ffff1f4fb23 in clone () at /usr/lib/libc.so.6
Thread 10 (Thread 0x7fffb79ff700 (LWP 8759)):
#0 0x00007ffff1f44c21 in poll () at /usr/lib/libc.so.6
#1 0x00007ffff0157540 in () at /usr/lib/libglib-2.0.so.0
#2 0x00007ffff015762e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3 0x00007ffff2628ce9 in QEventDispatcherGlib::processEvents(QFlags) () at /usr/lib/libQt5Core.so.5
#4 0x00007ffff25d1b2c in QEventLoop::exec(QFlags) () at /usr/lib/libQt5Core.so.5
#5 0x00007ffff2415569 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6 0x00007ffff3310969 in () at /usr/lib/libQt5Qml.so.5
#7 0x00007ffff241696c in () at /usr/lib/libQt5Core.so.5
#8 0x00007ffff1498a9d in start_thread () at /usr/lib/libpthread.so.0
#9 0x00007ffff1f4fb23 in clone () at /usr/lib/libc.so.6
--Type for more, q to quit, c to continue without paging--
Thread 9 (Thread 0x7fffc4c96700 (LWP 8758)):
#0 0x00007ffff1f44c21 in poll () at /usr/lib/libc.so.6
#1 0x00007ffff0157540 in () at /usr/lib/libglib-2.0.so.0
#2 0x00007ffff015762e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3 0x00007ffff2628ce9 in QEventDispatcherGlib::processEvents(QFlags) () at /usr/lib/libQt5Core.so.5
#4 0x00007ffff25d1b2c in QEventLoop::exec(QFlags) () at /usr/lib/libQt5Core.so.5
#5 0x00007ffff2415569 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6 0x00007ffff3310969 in () at /usr/lib/libQt5Qml.so.5
#7 0x00007ffff241696c in () at /usr/lib/libQt5Core.so.5
#8 0x00007ffff1498a9d in start_thread () at /usr/lib/libpthread.so.0
#9 0x00007ffff1f4fb23 in clone () at /usr/lib/libc.so.6
Thread 8 (Thread 0x7fffc5ed7700 (LWP 8757)):
#0 0x00007ffff1f44c21 in poll () at /usr/lib/libc.so.6
#1 0x00007ffff0157540 in () at /usr/lib/libglib-2.0.so.0
#2 0x00007ffff015762e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3 0x00007ffff2628ce9 in QEventDispatcherGlib::processEvents(QFlags) () at /usr/lib/libQt5Core.so.5
#4 0x00007ffff25d1b2c in QEventLoop::exec(QFlags) () at /usr/lib/libQt5Core.so.5
#5 0x00007ffff2415569 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6 0x00007ffff3310969 in () at /usr/lib/libQt5Qml.so.5
#7 0x00007ffff241696c in () at /usr/lib/libQt5Core.so.5
#8 0x00007ffff1498a9d in start_thread () at /usr/lib/libpthread.so.0
#9 0x00007ffff1f4fb23 in clone () at /usr/lib/libc.so.6
Thread 6 (Thread 0x7fffc7bf9700 (LWP 8755)):
#0 0x00007ffff1f44c21 in poll () at /usr/lib/libc.so.6
#1 0x00007ffff0157540 in () at /usr/lib/libglib-2.0.so.0
#2 0x00007ffff015762e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3 0x00007ffff2628ce9 in QEventDispatcherGlib::processEvents(QFlags) () at /usr/lib/libQt5Core.so.5
#4 0x00007ffff25d1b2c in QEventLoop::exec(QFlags) () at /usr/lib/libQt5Core.so.5
#5 0x00007ffff2415569 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6 0x00007ffff3310969 in () at /usr/lib/libQt5Qml.so.5
#7 0x00007ffff241696c in () at /usr/lib/libQt5Core.so.5
#8 0x00007ffff1498a9d in start_thread () at /usr/lib/libpthread.so.0
#9 0x00007ffff1f4fb23 in clone () at /usr/lib/libc.so.6
Thread 5 (Thread 0x7fffe227b700 (LWP 8745)):
#0 0x00007ffff1f44c21 in poll () at /usr/lib/libc.so.6
#1 0x00007ffff0157540 in () at /usr/lib/libglib-2.0.so.0
#2 0x00007ffff015762e in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3 0x00007ffff2628ce9 in QEventDispatcherGlib::processEvents(QFlags) () at /usr/lib/libQt5Core.so.5
#4 0x00007ffff25d1b2c in QEventLoop::exec(QFlags) () at /usr/lib/libQt5Core.so.5
#5 0x00007ffff2415569 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6 0x00007ffff7070ba6 in () at /usr/lib/libQt5DBus.so.5
#7 0x00007ffff241696c in () at /usr/lib/libQt5Core.so.5
#8 0x00007ffff1498a9d in start_thread () at /usr/lib/libpthread.so.0
#9 0x00007ffff1f4fb23 in clone () at /usr/lib/libc.so.6
Thread 4 (Thread 0x7fffe3ebe700 (LWP 8744)):
#0 0x00007ffff149eafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1 0x00007fffe852bc84 in () at /usr/lib/dri/i965_dri.so
--Type for more, q to quit, c to continue without paging--
#2 0x00007fffe852b9a8 in () at /usr/lib/dri/i965_dri.so
#3 0x00007ffff1498a9d in start_thread () at /usr/lib/libpthread.so.0
#4 0x00007ffff1f4fb23 in clone () at /usr/lib/libc.so.6
Thread 3 (Thread 0x7fffea32e700 (LWP 8743)):
#0 0x00007ffff1f44c21 in poll () at /usr/lib/libc.so.6
#1 0x00007fffef5ca630 in () at /usr/lib/libxcb.so.1
#2 0x00007fffef5cc2db in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3 0x00007fffeae06949 in () at /usr/lib/libQt5XcbQpa.so.5
#4 0x00007ffff241696c in () at /usr/lib/libQt5Core.so.5
#5 0x00007ffff1498a9d in start_thread () at /usr/lib/libpthread.so.0
#6 0x00007ffff1f4fb23 in clone () at /usr/lib/libc.so.6
Thread 2 (Thread 0x7fffebd5e700 (LWP 8742)):
#0 0x00007ffff149eafc in pthread_cond_wait@@GLIBC_2.3.2 () at /usr/lib/libpthread.so.0
#1 0x00007ffff226ecd1 in __gthread_cond_wait (__mutex=, __cond=)
at /build/gcc/src/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/gthr-default.h:864
#2 0x00007ffff226ecd1 in std::condition_variable::wait(std::unique_lock&) (this=, __lock=...)
at /build/gcc/src/gcc/libstdc++-v3/src/c++11/condition_variable.cc:53
#3 0x00007ffff5d07f14 in () at /usr/lib/libQt5WebKit.so.5
#4 0x00007ffff5d08039 in () at /usr/lib/libQt5WebKit.so.5
#5 0x00007ffff2275063 in std::execute_native_thread_routine(void*) (__p=0x555555cbde20) at /build/gcc/src/gcc/libstdc++-v3/src/c++11/thread.cc:80
#6 0x00007ffff1498a9d in start_thread () at /usr/lib/libpthread.so.0
#7 0x00007ffff1f4fb23 in clone () at /usr/lib/libc.so.6
Thread 1 (Thread 0x7fffebd62880 (LWP 8736)):
#0 0x00007ffff1e8bd7f in raise () at /usr/lib/libc.so.6
#1 0x00007ffff1e76672 in abort () at /usr/lib/libc.so.6
#2 0x00007ffff224258e in __gnu_cxx::__verbose_terminate_handler() () at /build/gcc/src/gcc/libstdc++-v3/libsupc++/vterminate.cc:95
#3 0x00007ffff2248dfa in __cxxabiv1::__terminate(void (*)()) (handler=) at /build/gcc/src/gcc/libstdc++-v3/libsupc++/eh_terminate.cc:47
#4 0x00007ffff2248e57 in std::terminate() () at /build/gcc/src/gcc/libstdc++-v3/libsupc++/eh_terminate.cc:57
#5 0x00007ffff22490ac in __cxxabiv1::__cxa_throw(void*, std::type_info*, void (*)(void*))
(obj=obj@entry=0x7fffe404aed0, tinfo=0x7ffff233b038 , dest=0x7ffff225eba0 )
at /build/gcc/src/gcc/libstdc++-v3/libsupc++/eh_throw.cc:95
#6 0x00007ffff2244781 in std::__throw_out_of_range(char const*) () at /usr/lib/libstdc++.so.6
#7 0x0000555555a5d31e in std::__detail::_Map_base, std::allocator >, std::__detail::_Select1st, std::equal_to, std::hash, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits, true>::at(int const&) const (this=this@entry=0x55555e2be6e0, __k=@0x7fffffffa4cc: 0) at /usr/include/c++/8.2.1/bits/hashtable_policy.h:434
#8 0x0000555555a53a43 in std::unordered_map, std::equal_to, std::allocator > >::at(int const&) const
(__k=@0x7fffffffa4cc: 0, this=0x55555e2be6e0) at /usr/include/c++/8.2.1/bits/unordered_map.h:994
#9 0x0000555555a53a43 in GroupsModel::getRootId(int) const (this=0x55555e2be6d0, id=) at /home/frd/kdenlive/src/timeline2/model/groupsmodel.cpp:210
#10 0x000055555577d57a in TimelineModel::getGroupElements(int) (this=0x55556dc646f0, clipId=) at /usr/include/c++/8.2.1/bits/unique_ptr.h:342
#11 0x00005555557d3042 in TimelineController::getCurrentSelectionIds() const (this=this@entry=0x555557cb5dd0) at /usr/include/qt/QtCore/qlist.h:115
#12 0x00005555557d32bc in TimelineController::selectItems(QList, int, int, bool)
(this=this@entry=0x555557cb5dd0, arg=..., startFrame=startFrame@entry=19312, endFrame=endFrame@entry=42500, addToSelect=addToSelect@entry=false)
at /home/frd/kdenlive/src/timeline2/view/timelinecontroller.cpp:1086
#13 0x000055555587cefc in TimelineController::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)
(_o=_o@entry=0x555557cb5dd0, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=99, _a=_a@entry=0x7fffffffa960)
at /home/frd/kdenlive/build/src/kdenliveLib_autogen/CFUJZ622G4/moc_timelinecontroller.cpp:790
#14 0x000055555588538b in TimelineController::qt_metacall(QMetaObject::Call, int, void**) (this=0x555557cb5dd0, _c=QMetaObject::InvokeMetaMethod, _id=99, _a=0x7fffffffa960)
at /home/frd/kdenlive/build/src/kdenliveLib_autogen/CFUJZ622G4/moc_timelinecontroller.cpp:1153
--Type for more, q to quit, c to continue without paging--
#15 0x00007ffff32b4e0e in () at /usr/lib/libQt5Qml.so.5
#16 0x00007ffff31b7d32 in () at /usr/lib/libQt5Qml.so.5
#17 0x00007ffff31b93e5 in () at /usr/lib/libQt5Qml.so.5
#18 0x00007ffff31ba06f in QV4::QObjectMethod::callInternal(QV4::Value const*, QV4::Value const*, int) const () at /usr/lib/libQt5Qml.so.5
#19 0x00007ffff3240c45 in QV4::Runtime::method_callProperty(QV4::ExecutionEngine*, QV4::Value*, int, QV4::Value*, int) () at /usr/lib/libQt5Qml.so.5
#20 0x00007fffa00fa1a3 in ()
#21 0x0000000000000000 in ()
```