VLC (TopWindow) shows on fullscreen mode

With custom skin, on VLC (Fullscreen) mode when you click on a floating panel (any action) - show VLC (TopWindow).

If kill kwin_x11 and start VLC again - all worked fine and TopWindow not showed on Fullscreen

VLC (TopWindow):

_NET_WM_ALLOWED_ACTIONS(ATOM) = _NET_WM_ACTION_MOVE, _NET_WM_ACTION_RESIZE, _NET_WM_ACTION_MINIMIZE, _NET_WM_ACTION_MAXIMIZE_VERT, _NET_WM_ACTION_MAXIMIZE_HORZ, _NET_WM_ACTION_FULLSCREEN, _NET_WM_ACTION_CHANGE_DESKTOP, _NET_WM_ACTION_CLOSE
_NET_WM_DESKTOP(CARDINAL) = 0
_KDE_NET_WM_ACTIVITIES(STRING) = "b62a85dd-d396-449d-9e0b-5cca5a4a9fa0"
WM_STATE(WM_STATE):
                window state: Normal
                icon window: 0x0
_NET_WM_STATE(ATOM) = 
_KDE_NET_WM_USER_CREATION_TIME(CARDINAL) = 31339969
_NET_WM_PID(CARDINAL) = 94139
WM_CLIENT_MACHINE(STRING) = "alex"
WM_HINTS(WM_HINTS):
                bitmap id # to use for icon: 0x5600003
                bitmap id # of mask for icon: 0x5600005
WM_CLASS(STRING) = "vlc", "Vlc"
WM_TRANSIENT_FOR(WINDOW): window id # 0x5600002
WM_NAME(STRING) = "VLC (TopWindow)"
XdndAware(ATOM) = BITMAP
_MOTIF_WM_HINTS(_MOTIF_WM_HINTS) = 0x2, 0x0, 0x0, 0xed642000, 0x48c7e880, 0x6efa8191, 0x0, 0x798, 0x48129890, 0x798

VLC (Fullscreen):

_NET_WM_DESKTOP(CARDINAL) = 0
WM_STATE(WM_STATE):
                window state: Normal
                icon window: 0x0
_NET_WM_ALLOWED_ACTIONS(ATOM) = _NET_WM_ACTION_MOVE, _NET_WM_ACTION_RESIZE, _NET_WM_ACTION_MINIMIZE, _NET_WM_ACTION_MAXIMIZE_VERT, _NET_WM_ACTION_MAXIMIZE_HORZ, _NET_WM_ACTION_FULLSCREEN, _NET_WM_ACTION_CHANGE_DESKTOP, _NET_WM_ACTION_CLOSE
_KDE_NET_WM_ACTIVITIES(STRING) = "b62a85dd-d396-449d-9e0b-5cca5a4a9fa0"
_NET_WM_STATE(ATOM) = _NET_WM_STATE_MAXIMIZED_VERT, _NET_WM_STATE_MAXIMIZED_HORZ, _NET_WM_STATE_FULLSCREEN, _NET_WM_STATE_ABOVE, _NET_WM_STATE_STAYS_ON_TOP
_NET_WM_WINDOW_TYPE(ATOM) = _NET_WM_WINDOW_TYPE_NORMAL
_NET_WM_PID(CARDINAL) = 94139
WM_CLIENT_MACHINE(STRING) = "alex"
WM_HINTS(WM_HINTS):
                bitmap id # to use for icon: 0x5600003
                bitmap id # of mask for icon: 0x5600005
WM_CLASS(STRING) = "vlc", "Vlc"
WM_TRANSIENT_FOR(WINDOW): window id # 0x5600002
WM_NAME(STRING) = "VLC (Fullscreen)"
_MOTIF_WM_HINTS(_MOTIF_WM_HINTS) = 0x2, 0x480008d6, 0x0, 0x5, 0x480008e8, 0x70, 0x1, 0x0, 0x0, 0x0

KInfo:

Operating System: KDE neon 5.22
KDE Plasma Version: 5.22.4
KDE Frameworks Version: 5.84.0
Qt Version: 5.15.3
Kernel Version: 5.13.0-10.3-liquorix-amd64 (64-bit)
Graphics Platform: X11
Processors: 12 × Intel® Core™ i5-10400F CPU @ 2.90GHz
Memory: 7.7 ГиБ of RAM
Graphics Processor: NVIDIA GeForce GTX 1050 Ti/PCIe/SSE2

Tested with vlc 3.0.9.2 and 3.0.16 (flatpak)

Bug preview: (default skin)