Affected input device: Logi MX Master 3
Device information:
- Type of Mac: laptop
- macOS version: 13.6.6
- BetterTouchTool version: 6.206
It seems most of the latest February 2026 versions have such bug: in 90% BTT does not recognize customized keys (especially “button 7” or “button 6”) after reconnection from different host. In such case BTT restart does help.
Reverting to BTT 6.124 reduces such cases to 5-10%.
Please find attached 2 logs:
-
“btt_6.206_connection_event”: MX mouse keys don’t work after reconnection
-
“btt_6.124_connection_event”: MX mouse keys work properly after reconnection.
btt_6.124_connection_event.txt (10.3 KB)
btt_6.206_connection_event.txt (8.1 KB)