I tried to add somebody to my Buddy List yesterday, but I wasn't able to save the changes because Guapo Mendéz and Pól Rua are on the list, and they supposedly "are not found in the database". Was there a recent vBulletin upgrade with a bug in it?
(I used to run into similar problems a couple years ago - I couldn't send Pól a PM because the server apparently wouldn't recognize the accent for some reason. The problem went away after one of the CBR upgrades.)
(I'm using a Mac, OSX, and Firefox 188.8.131.52. The problem also crops up in Safari 1.3.2. In both cases, it wasn't there a few weeks ago.)