I had a similar issue a while back and it took me forever to figure out what was causing the problem. I assume you are using Verse code in your project. Maybe check your Verse code for syntax errors that aren’t being flagged by VS Code.
My issue was caused by using => instead of → in a for loop for indexing key/value pairs of a map.
e.g. for (key => value : MyMap): instead of for (key → value : MyMap):
It’s confusing because you use key => value syntax elsewhere, just not in a for loop, otherwise the editor crashes on build.
Someone else made a post having a similar issue and their fix was different to mine. It didn’t work for me, but might also be worth checking it out.
It wasn’t that unfortunately. All I had to do is open another UEFN project, then open this one and no crashes anymore. Started happening after I synced with URC from a team mate