Someone posted about this over a year ago in the chitchat forum with no reply, so since I'm having the same problem I thought I'd mention it here: When I try to delete something from my favorites, the list refreshes as normal but the would-be deleted item is still there, only it's moved up in the queue as if something before it was deleted instead. I have over 100 favorites at the moment so I can't be exactly sure what's just been deleted each time I try this, which means I can't confirm that anything is actually missing other than the fact that the number of favorites I apparently have does go down each time I do this.
My questions, then, are what's causing this problem, and what can I do to fix it?