Just jumping in to say that I have this issue too. I'm 99% sure it has something to do with her additional usergroup, though I do not know why.
Or, she's cursed.
Nothing to do with the Battle Server Staff usergroup.You mean her Battle Server Staff usergroup? I know it's been a while since I last got a VM from her, but going by what you mentioned it could be to do with her BSS title. Maybe I'll try and get her to VM me and see if I have the same problem as the others mentioned.
But yeah maybe she could really be cursed, but I don't think that's true. It might be a bug to do with her.
scream at it!