Move windows to another desktop

Hello BTT community.

I'm a newbie and am trying to create a startup routine that opens certain apps in specific Mission Control desktops. I'm using a laptop and an external monitor. I've set up these configuration:

and I'm triggering the Action URLs through Alfred.

When I trigger upon a window in Desktop 1 with the Action "Switch to Desktop 8" nothing happens. The window remains in desktop 1. When I trigger "Move Window One Space/Desktop Right" it moves the BetterTouch Tool app to Desktop 2.

Any thoughts? I did read other threads. I've given BTT screen recording authority in System Settings.