@Claude31 To answer your questions: 1. Yes, it happens on several files. .swift files. 2. Yes the files open fine in any other app. I even re-downloaded the code from our repository. They are super basic swift files. 3. There are no strings in the file. 4. Yes, clean build, deleted derived data. 5. Hmmmm.... If I double click the file in the finder, the file opens in Xcode no problem. I think you are onto something here. How would I trouble shoot this? 6. Yes, things work in 12.5. Only 13.x fails. The strange thing is that Xcode fixed itself, worked flawlessly for a few days, opening the same files. Then started crashing. 7. I have not tried (13.2 ß) 8. No storyboards, it is a SwiftUI project

@Claude31 here is an example file that causes the app to crash.

@aureliencobb FYI: I have been running 13.2 beta for about a week now and I have only had a few crashes.