I had a couple of short mp4 files with video in / video out filters in place which I have used on several Shotcut films without any problems.
Today I tried to use them, they did show up but the video in - video out effect didn’t work.
I tried several times without any luck. Now I see they are now saved on my computer as .MOV files … they were mp4 files before … made in Shotcut
What’s going on please ?