Not sure if this has been reported but I'm experiencing this in my environment.
If I try to move the tracker window of FuBar_QuestFu (use own tracker on) when I am on a gryphon or whatever, I can't drop the window anymore. I can't do anything more with the mouse after that. I don't know how to quit the game from keyboard so I have to force it to end by shuting down the os, which results in a loss of the record for some addons including questfu in that session.
Even not on a flight, moving the trakcer window sometimes have strange behavior that I can only move the window to limited area, sometimes out of the screen.
Moving window of other addons like CTBufMod or standard Chatbox in flight has no problem.
Is there anyone experiencing this?