After a 3 finger swipe down on a BT Magic Trackpad, BTT stops working (i think)

I'm working on with a 15" MBP and an external BT keyboard and a BT trackpad. I assigned a 3-finger swipe-down gesture to "HIDE the app below the cursor" and although it worked fine until a couple of versions ago, it suddenly stopped working and right after the gesture, the BT keyboard and trackpad disconnects from the system.

I'm currently running the latest BTT version (that being 4.00 002 (2217) at the time of this post)

Is there anything I'm doing wrong? Perhaps some new option I'm not aware of and it's colliding with some new functionality thus blocking the action?

Any and all help would be appreciated.