Not sure whats going on here. Ill be playing a game or just browsing and my sensor and all actions will just stop working on the mouse. 2nd mouse I've gotten because of this issue. Seems to happen a lot when lifting the mouse up and putting it back down and I can also cause this issue by hitting keys on my k70 while moving the mouse around and hitting mouse buttons a bunch. Also does it if i move the mouse really fast.
Edit: Plugged in btw not using any wireless.
Edit2: Did some testing only happens when wired it seems.