you are correct that if i had a pair of keyframes in the time remap filter that would reference the same time it would make sense.
However in my case at some point - all the clips on which I had defined the timeremap filter all show the same freeze and are indeed frozen. while when looking at the keyframes you can see that they are linear and should not be frozen as can be seen here:
if I add the same clip again and apply the filter to it again - it plays o.k.
so i actually have two instances of a “chain” element in the file that look almost identical - one that does play and one that does not.
I really don’t want to have to re-do all those clips and I was hopeing that I can cause Shotcut to some-how re-calculate the filter without having to re-define it.
it looks like i can create a preset of the filter, than remove the filter, and add it again with the pre-set.
but still I really want to understand what I did wrong (or whats the bug behind this) so that when I continue editing I won’t stumble on it again.
I was wondering - could this be some sort of cache issue? (I am asking this after playing with the mlt file and educating myself about its structure - and seeing no major differences between the two “chain” elements of those two clips (I mean those that come before the playlist element that represents the track on which those two clips are) ?