Crashing - MOV 4K files

System info
    Application: Premiere Pro (Beta) v14.9.0.41
    OS: macOS v11.1.0, RAM: 16.00 GB, CPUs (logical): 8

Premier crashes when editing 4K mov files, 25 frames. All I'm trying to do is watch and cut/delete content. It was working fine on HD content with same file format, but with 4K it's not handling it, well I think that's the cause.