2 different triggers (over dock and not over dock) not working

Screenshots

Describe the bug
As visible, I want to use the 3 finger click on my trackpad for two different actions: When clicking a dock icon, I want to close this app, and when clicking outside of the dock I want to do a middle mouse click.

Each functionality works on its own perfectly, but when I enable both, the middle click is not working anymore.

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

Device information:

  • Type of Mac: MacBook Pro (15-inch, 2018)
    macOS version: OSX 10.15.1
  • BetterTouchTool version: (3.207)