GrandPerspective is very stable. Crashes while it is scanning are fortunately very rare, but have been known to happen. If it happens to you, follow these steps:

1. Enable and view full logs when starting the application.
2. Try to reproduce the crash. Did you manage?
   • No, keep trying.
   • Yes, then inspect the logs to determine which folder is being scanned when the crash happens. Continue to Step 3.
3. Try to find the root cause by answering the following questions:
   • Is it repeatable? Does it always crash while scanning the same folder?
   • Is there anything special about this folder? For example, does it contain files with unusual characters in their names?
4. Once you manage to reproduce a repeatable crash, submit a bug report for it. Provide as much details as you can. This should include the steps to reproduce, but also the version of GrandPerspective and your version of macOS.
   
   Note: You can also submit a report when you did not manage to reproduce a repeatable crash. However, the chance that the problem can then be fixed is much smaller.