Several people had reported this issue on my forum as well and here it is happening in the same way, we’re unable to revert the title back to none if it is set to anything!
For example, right now I’m stuck with Tech Support (or regular) next to my name on meta!
As an admin I can set your title to none, can you try to put a title back and then remove it?
I had been trying it, that’s what I’m trying to say! As an admin I can set anyone’s title to none on my forum but users can’t set it to none on their own. Same is happening with me on meta, You can set it to none for me but I can’t do it myself. It shows saved but when I refresh the page, it returns to the title that was last set.