"Invalid clip producer" alerts when reloading a saved project.
i found how to make the "Invalid clip producer" alerts...
just create a project ... add just ONE video clip (audio+video 1080p) add tracks A3V3 and A4V4
place the clip on V1A1 place the same clip on V2V3 (just disaligned a bit) same for V3A3 V4A4...
now add 3 composition and transform on the track V2 V3 V4 , (i chnaged opacity to 50% just to see something on preview)
make the background of V2 transition to V1 (from automatic to V1) and V3 to V2 and V4 to V3
(like on image)
save the project, close Kdenlive, reload the project .. and on my PC (Windows) the alerts pop-up...
Edited by Davy Bartoloni