App on note 20 ultra keeps crashing

I have a 360 video with 30 minutes of video, which I finally managed to cut, but this took 2 attempts as the app stopped and shut down the first time?

I eventually managed to trim my footage and export it to my story. While editing it, the app has shut down twice and I'm only on clip 2 of 12?

Please advise how to fix this issue as it is getting really annoying?