I just did a screen recording with Quicktime Version 10.4 (928.13). After i tried to save the video, "Cannot open" popped up and I followed the method described in this link “cannot open” when trying to save screen recording in quicktime player. So I was able to retrieve the screen recording.
However, the video only captured around first 20 minutes, and audio works fine. Say the whole video is 2 hours, but if I drag the time line after 20 mins, the video will stop at same frame and it would never change.
I have enough spaces on my mac (95GB is available).It is third time that it's happening to me. Any suggestions/workaround will be greatly appreciated.
Quesition: Is there a way I can restore the whole video since current video only works up to 20 mins, and rest of it is all audio only.