Hey, thanks for the report.
This issue is actively tracked here: Project Rules: Documented RULE.md folder format not working, only undocumented .mdc format works - multiple users confirm the same behavior on 2.2.x.
Right now there’s an inconsistency with the new folder-based RULE.md format. A temporary workaround is to use the legacy .mdc files directly in .cursor/rules/.
For debugging, please share:
- The exact .cursor/rules/ structure (show the file tree)
- A screenshot of Settings > Rules > Project Rules
- Whether the rules were created manually or via Settings > Rules > + Add Rule
- Try Reload Window (
CMD+Shift+P> Reload Window) and tell me if it helped
Let me know the results.