FewCloudy Not sure what you mean by selecting "show only on #1"? Selecting where? In my display properties, I have my #2 as the primary display (I have the laptop internal one, which is #1, and three other monitors connected).
Even if I deactivate the internal display, LC won't show up on the primary (#2), it shows up on #4, no idea why. No idea how it picks the monitor.
It would be really great if there was a solution for this.