Random UI interaction during mouselook

Ok so I use mouselook all the time, not the toggle, just right mouse button held down, and I think this is the only time this bug happens, but while having it held down I've switched chat tabs and more annoyingly, accidently left groups. I've seen it happen to others as well.

Is there a fix for this? Oddly if I let go of the mouse button right after such an oddity occurs, the cursor isn't even hovering over the ui element that was interacted with.