i optimized the "movie player" part yesterday a little bit.
"ShowBlackScreenAfterVideoIsPlayed" was called 1 time after the movie was playing (on finishing).
The video lags at the very very end, and the very last frames (let's say 1 or 2) are not played at all, which gives the impression of a sudden "jump" to the final webp picture.
In your video add 2-3 frames of the last "picture" until you find a proper solution
We're fixing much things again And make the engine better and better. We've some "construction zones". We can't say an release date yet.