Clicking always does a Look at for a single account

Clicking on any target does an auto-Look At, as if I have Alt key pressed, but I don’t.
I have a few accounts, each with all three characters on, but this only occurs with one of them, and I can’t find a way to disable it, clicking on a target pans the camera around, it’s very annoying.
It occurred a few months back with the same char, in the end, I reset the UI, which was a pain but worked, but now I’m loathed to do that again.

Shift + C to de-toggle Auto-Tracking