this is a thing what I always wanted to ask:
The part in the middle was one track lower and while Playback it run smooth.
Then I put it one track higher and stutter! And not to misunderstand…, even if I put it back into the previous track…, the stutter stays.
(In that case the part has no blending, no mask only a normal piece of video.)
Why is that so? BTW, this happens often to me…, it runs smooth in the Playback and changing a *small thing, not even a filter, suddenly stutter…