I see the label "Crashed in non-app" on an issue. I want to understand what it means and whether my own code caused the crash.

"Crashed in non-app" means the crashing frame in the stack trace occurred outside your code, for example in a system library or a framework.

This does not mean your code is unrelated. Your code can trigger a crash that surfaces in a non-app frame later in the call stack.

To investigate, review the full stack trace and look for frames from your code earlier in the call stack. Those frames often reveal what led to the crash.