Never had this problem before.
Went to Wardrobe
Changed outfit
saved outfit
went to Home page
Old outfit showing ( happens sometimes)
re-enter world
old outfit displaying
I don't think a dev was involved. It just takes a little bit for the system to craft a new sprite from your wardrobe/vanity selections. If you read some of the recent blog entries, they switched from having multilayered sprites that could be switched on the fly to mono-layered sprites which are redrawn each time you make a vanity/wardrobe change.
This was done in the interest of optimization, since as the previous system required a large amount of resources and time to load new player appearances.
I made a wardrobe change right around the time the game opened this evening and it still has not updated. My home page says the preview image of the avatar would take a few minutes to load. It has been about an hour and the preview image and my in-game avatar have still not changed. I went back to wardrobe where my avatar is wearing the new outfit, but that is the only place.