can't save due to FK in save file name

Hey @fraudiola thanks for flagging this with the team. Unfortunately, this is something that isn't within our control. This was obviously previously accepted as you've provided the evidence above, but Microsoft have recently updated their profanity filter which has now caused this issue. We're sorry for any inconvenience this may have caused.

We had a similar issue flagged previously in regards to a managerial name. From a footballing perspective we obviously all know that FK is completely fine, but the filter takes into account other potential uses for those characters.