Effects: Temporal - Speed. Doesn't like cuts in the video
This works the same in HF 2 Express as HF 3 Pro, so it's obviously not seen as a bug in any way, but the way it works is confusing me, as it's not doing what I hoped/expected, nor can I work out what it is doing.
If I set Speed change keyframes on a single clip, it behaves more or less as expected; although it then loses sync with the sound, which remains at the normal speed; but when I slice a clip: all bets are off.
If I slice between two keyframes, not only does the last frame before the cut change, but the first frame of the next section isn't even close to the right one. So doing a cutaway to another shot, then coming back where you left off isn't possible. Multiple cuts confuse it even more, where if I apply a speed change to some sections in the middle they can be ignored entirely, no matter what value I put in there.
What I was expecting it to do was create two extra keyframes of the correct speed to the last and first frames of the sections either side of the cut and also maintain the correct frame numbers. It doesn't do that and what it does do is unpredictable (to me, anyway), so...suggestions?