I'm having the same problem, only I don't have RecZone and there seems to be no consistancy between any addon I disable and the problem. Even more so since some of my toons experience it and some don't, with the same addons!
I got tired of the swapping in and out of different mods FuBar or not to try and get rid of the issue.
so like I said, I just chose to use SimpleMinimap to let me put the mini map where I want it. I want it where it's supposed to go, and i haven't had any issues since. just have one more mod to update now. It's a nice one though.
Just registered to leave a note about what I found to be the cause of this issue...
Its a library conflict. Fubar uses libjostle-3.0, but many plugins embed libjostle-2.0. They fight. A lot. The fix was to switch WAU to not use externals and use dependencies. Then, everyone used libjostle-3.0 and all was well in the world.