I don't know if I'm doing something wrong or what.

I've got the Logitech Options installed on my desktop and on my laptop. The unifying usb is plugged into the desktop, and the MX Master 3 mouse/MX Keys keyboard work fine.

I have the mouse/keyboard connected on my laptop with bluetooth, and at first it worked (sort of). It lagged quite a bit when switching between desktop and laptop monitors, but the mouse worked. I had to use the switch key (#2) on the keyboard in order for the laptop to recognize the keyboard (it wont auto switch between the two).

Somehow I've screwed everything up once I unplugged the USB unifier from the desktop. Now the Flow feature between the two computers wont work. I have to manually switch between them with the button under the mouse.

Questions:
1) Why wont the Flow feature work anymore? Not sure what happened after unplugging the USB.

2) Is there not a way for the keyboard to switch between computers with the mouse cursor? Or do I just have to use the easy-switch button on the keyboard every time?

3) Is the lag when switching between computers normal?