Crazy render / flashing / clip substitution problem with masked compound clips
I have used FCPX for years. In my last project the rendering has gone…bonkers.
I am running FInal Cut Pro X 10.6.3 on a MacBook Pro M1 Max with 32GB of Ram.
Basically I have multiple clips on screen with a variety of masks combining them (max 5). It seems to be fine when editing on screen, but after rendering or exporting it goes…well.. Crazy. Different clips flash over top of each other, some of the masks drill down to the base layer video (through a generator!). The footage is unusable. I had a similar, but much less acute problem about 3 months ago on a project but simply deleting the generated media "fixed" the issue. Now nothing seems to fix it! I have tried
- deleting the generated media and re-transcoding
- Duplicating the project
- Creating a New project and copying the contents of the project
- Moving the project to a different drive
- Replacing the video with itself
- Several combinations of the above multiple times over.
This is driving me bonkers. This is my first real Final Cut Fail since FCP 7!
I have several layers of compound clips which may be confusing FInal Cut Pro X.
Any suggestions for help are very welcome. Also any suggestions on how to avoid it in the future are similarly welcome.
There are about 700 edit points so recreating it at this point is a challenge. I have a deadline for Tuesday, so … 😭
