I've got an empty notification of Members requested Account Deletion: which has been there for a few weeks.

There was a member in there, which I deleted through the members area so I could keep their posts as Guest posts (I wasn't sure if I could do that through the notification itself).

But since removing the member, the notification albeit empty now has remained.

Please be advised I have moved this to a ticket so we can further investigate. Likely this happened on a previous release prior to our patch and may just need cleanup. However, we'll investigate and see what is going on. Please watch your email for further communication.