Yeah this issue is very persistent. Happens without any addons at all, too.
Seems like the most consistent way for me to recreate it is opening certain collection tabs - but ESPECIALLY the transmog/appearances windows. It’s so bad that if I’m unlucky it will get suck in a loop of freezing until I manage to close out the window and force a ui reload.
It rarely happens just walking around more populated areas, not sure why - but it does seem to be more so related with UI based textures. The freeze itself seems to unload EVERY texture and model, and slowly recover, until it gets to whatever model/texture is problematic - or maybe it’s the amount at once that is a problem? It could be, since the tmog window loading dozens of models and textures for the previews would explain the consistent replication.
Had a few days off playing, coming back on line I still have the same issue, I tried playing with music disabled as you suggested and bingo seems to work for me. I always have the sound turned down anyway so its no big issue but blizz still needs look in to it a get it sorted we all pay lots of money to play this game its important that it functions a basic level.
I think i just fixed mine… i changed the graphics api to auto detect. Was set to direct x 12. But now when i try to mog and somewhat force the issue, it never happens.
It happens to me too when I open the transmogrification window or the appearances window. Green screen and everything resets. I cannot recreate it consistently, though. Sometimes it loads the appearances normally. I have no addons.
It does not happen anymore when i open transmo on my mount however now i get a lagspike off around 5 seconds and then my tab often needs to load for 30 seconds before i see any transmo or gear or weapons sometimes i need to mount and dismount several times for it to load
It does not have some gameplay trigger - you can’t recreate it consistently. It depends on state of internal loaded graphics data. That’s why it triggers most often when you load lots of stuff at once like all the different appearances on collection tab. Almost month is already passed and it is not fixed.
(But then again, there are some unfixed graphics bug with years of history like flickering water at DMF pier/IoT or pools of gray/nothingness near other liquids.)
It’s weird that I’m not experiencing an identical problem to yours (with an old pc and no SSD), but then again the character login screen somehow seems to be the closest thing to transmog interface and having close to 60 characters seems to somehow break textures of different models on the list every other relog.
I don’t hear players with a lot less character slots used complaining about the same thing so something must be overloading the DX12 after which some of the textures fail to load up.