I hope there's space to report a small bug for KeyboardCleanTool.
When enabled on my MacBook Pro M3 it doesn't disable the caps lock (the status light turns on).
It can be reproduced by starting the app and then slowly (with pauses of 1 second) hit the caps lock button. If you tap it fast, it won't turn on btw.
If there's some sort of log I can share, please let me know.
HTH
Device information:
- Type of Mac: MacBook Pro M3
- macOS version: Sonoma 14.4.1