yes I can easily reproduce, the duration of the clips changes alone. Especially when using scenes and cues, H264 codec often changes the length of a video that I haven't even shown yet. Then I need to delete and reopen to enter with all the duration and hope not to crash. I updated to version 3.7.4 and continues to tweak from time to time, I'm dropping everything manually because then I can see the duration and fix before releasing.
thx for sending new version, you have for windows 10 ?