Originally Posted by Sideshow
If the problem is persistent, you can do a 'binary search'
First, disable the upper half of the addons
If the problem still occurs, you know it's probably not a problem with the upper half of the addons
Then, disable the upper half of the original lower half
Have fun  |
The problem is, it is a sporadic error. Without knowing what to do to cause it, you can not be sure.
I assume it is an general issue of ShowMenu, and the message is a misleading "always print this if any error occurs".
I think ZO_Menu_OnHide is not always called (in the right order) because the owning control gets invisible, but not hidden. (same problem as with tooltips not get closed)
And/Or some OnEffectivelyHidden handler get replaced by ShowMenu.
If I am right, you had another context-menu opened before and not closed before opening another window by key-bind.
But that's just a theory...