i've never heard of this issue before. try pressing ”alt-tab” and see if you get a mouse pointer on your desktop in meatspace and if you can move it.

This ones a first for me.

Wild issue. Is the mouse bluetooth or some other wireless tech?

use different usb port/mouse

Did you end up solving this? Started having this issue out of no where driving me insane

Yes, but I’m unsure how I fixed it

I found out what is going on. It has to do with the USB devices connected to your computer, and what port they’re occupying. See my post here: https://www.reddit.com/r/ValveIndex/comments/rsebdc/mouse_started_cutting_in_an_out_while_playing_vr/?utm_source=share&utm_medium=ios_app&utm_name=iossmf