Good App, but REALLY glitchy

Ive been using Imovie for a while, and recently it has been getting more and more glitchy. Today it changed all of the lengths of clips and transition, and it took me over an hour to fix it. When I fixed it and left the app, it did it again! I just finished spending another hour getting back to where I originally was. If it wasnt for this glitch, and a few others, I would give this app 5 stars

ICACISTHEBEST about iMovie, v2.2.3