About 3-4 patches back (recent) something happened to how my right mouse button is working.
It cancels "r". It cancels my selected target. It will target, pretty much, anything. Npcs, objects and players.
It's never done this before. I've checked my settings and nothing stands out to me. It did have "Execute" enabled on the right mouse button. I cleared that out and no change.
This is very annoying because I use it to steer my toons while moving and now it's doing all this random stuff.