After a windows update to windows 11 I got this error: Font 'Cooper Black' cannot be found. That makes the app crash during the start. Trusting the fix will take a while I installed the font myself I got from the website Cooper Black Font: ? Then the CodeEditor worked normally.
I'd like to ask Marshall's devs to solve this one. Also, I'd like to help other people with the same problem.
That's my contribution to this community.