I may be wrong, but seeing the addons I use or don't use and the updates I made/didn't make and the common bugs I have with others that dont use the same as me appearing when no addon/lib has been updated , I'd say Zos is changing things in the way the maps are taken care of, probably to try to reduce the lag problems introduced by 1.7 update.

Would it be possible to keep us posted on these changes? because it makes no sense to let authors try to "fix" things on their side except if you want them to create new problems for the next Zos fix.
Something went very wrong this week again.

It would be easy to point a finger at Minimap since it has been updated a few days ago, but i'm not using it. And I have the same problems as others. Same with AUI.