Preview doesnt function as the prototype says

When I preview my project it stops properly working with the last rows of frames (its a big project). It wil jump back to the first frame of this kind instead of going forward. I tried everything but it just wont work and I’ve got a deadline of friday morning.

Another problem I have is that interactions wont work, no matter if I replace them. They only work when I open the preview on the frame that wasn’t working.

So in summary I’ve got lots of problems with the interactions which makes it not work the way it should, these problems only show up in the last 2 rows of frames.

I hope someone can help me!