After the latest update:
When import of a mp4 clip with 600 MB sound is ok and visible in the timeline but the running movie is not shown, only a frozen picture. When playing stopps only the pic at this position appears ?
I have not experienced this problem. Did you use the exact same clip without this problem in a previous version of Shotcut?
Please send the details of your MP4 using Properties > menu > More Information.
Thanks for answering, no this is a new task, done only with the latest update. It happenes only with some mp4 files and is repeatable. I have not changed the settings in shotcut.