Just go there and you’ll know what I mean. Flicker madness.
I found this too, the flicker is visible and this makes it difficult to move across, since I get bounced in various directions. Not sure which floor tile is the one I’m supposed to walk on.
Screenshot, showing how some tiles appear overlaid on others below. It doesn’t really capture the flickering.
https colon slash slash imgur dot com slash a slash ecQfBVk
(Can’t include images, so replace characters as appropriately above.)
i was wondering if anyone is seeing the same type of flickering with the mailboxes in the vale?
(or maybe i’ve got ANOTHER graphics card on the way out?) 
The mailbox at the Tillers inn doesn’t spawn in until i have been next to it for a second or two. Lots of weird phasing of objects in Pandaria and none of them ever seem to get fixed…