If folks are still having this issue, I'd like to try to figure out if it's a few different issues or just one.
1. If you have footage that is flickering to black frames, please make sure you've upgraded to 25.3.2, then purge your disk cache, and then see if the problem persists. The latest version of AE has a fix for black frames showing up where footage should be.
2. If this is related to your comp panel itself flickering, not the footage, that is more likely related to a change to use a
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