Double 2 finger tap on Finder desktop to launch / Show Forklift

Guys I'm trialling BTT at the moment on a 2018 Mac Mine running the latest production Big Sur OS (11.1).

I've set a 2 finger double tap trigger and set it to run a specific application (Forklift) with the option to send a CMD N if no window is open.

The issue I'm seeing is that half the time I execute the trigger the Forklift app appears (or disappears) from the application tray without the window I have for it being displayed on the desktop at all.

Is this sort of issue a known problem, or is there something I'm missing?

Thanks in advance.