PLEASE FIX

I love this app, easy to use, and fun. Ive used it for about 5 years now but now it has issues such as whenever I try to add audio from a video, it wouldnt trim and when I split the video clip, the screen goes black and doesnt play. I have an IPhone 7 so it should run fine but its been having issues.

Gavlan about iMovie, v2.2.3