Toggle mouse speed function does not work properly

Describe the bug
I set the BTT to change the mouse tracking speed when I press the key fn+m (via the keyboard tricker). In the advance setting of mouse, I set the normal tracking speed to 1 and another tracking speed to 7. BTT seems to work properly when I press the key fn+m. However, after a while, BTT automatically sets both tracking speed to the same values (see attached image), so when I press fn+m, the toggle mouse speed function does not work at all.

**Affected input device (e.g. MacBook Trackpad, Magic Mouse/Trackpad, Touch Bar, etc.): mouse and trackpad


Device information:

  • Type of Mac: MacBook Pro (Retina, 13-inch, Mid 2014)
  • macOS version: OSX 10.13.6
  • BetterTouchTool version: 2.645

Additional information (e.g. StackTraces, related issues, screenshots, workarounds, etc.):
Another issue is that when I set the normal and faster tracking speed for mouse (in advance setting), the tracking speeds for the trackpad (both normal and faster ones) are changed also. It seems that I cannot set the normal and faster tracking speeds of mouse and trackpad separately.

Just update BTT to 2.660, and also face this issue.

Same issue with 2.728

Is that the default speed in BTT?