When pressing Mouse4/Mouse5 + Turning my character (right click), my camera eventually gets stuck in turning/right-click mode. After opening a ticket blizzard support told me to rebind those keys until they figure things out.
Surprisingly, it actually worked. I used Mouse Manager from “RealityRipple” to rebind the keys since there doesn’t seem to be a native way in windows. (yeah i know their website looks sus)
Basically you rebind “whatever-mouse-key-is-causing-issues” to a key on your keyboard and then you bind that keyboard key ingame.
It’s basically a workaround until blizzard figures things out.