- Iteration still going on after scan finished
- Comparing milliseconds with seconds
- Potential imprecision due to accumulating milliseconds (iteration could take fewer than 1ms)
- Folders to scan not cleared when a new search starts
- FileAccess was accessed null (remains of GDScript port)
- `_current_file` wasn't going up correctly in case a scanned directory had no subdirectories
- Paths stored in `_files_to_scan` were not full paths