The video part consists of two parts hence the block.
Which one are you trying to trim and to which direction.
I want to trim the first one on the second one.
I noticed that it works only if i shorten the second one and then stretch the first one, the problem only occurs when i try to go over the other clip.
the problem only occurs when i try to go over the other clip.
That is your problem: you cannot.
hence, the rolling edit.
you could zoom in on timeline as necessary and select EVERYING to the right of the clip you want to extend, and move it out of the way...and THEN do your adjustment of that one clip, and THEN select everything to the right of it, and put your CTI at the end of adjusted clip ( so stuff will sorta snap to it ), and move everything BACK to fill in the gap.
depends on lots of stuff ( sound (links) and layers and so on ) if you can make that happen nicely.