Has the alternate character render format changed and I missed it?
This generates a 403 forbidden instead of the generic image:
ht tps://render-us.worldofwarcraft.com/character/ravencrest/104/31767656-avatar.jpg?/wow/static/images/2d/avatar/4-0.jpg
I’ve got many more examples; seems plenty of guilds are packed with old characters whose renders aren’t working.
Edit: had to bodge the image address to get past the guards.