Characters - as per åäö, and any other non-standard letters. You're allowed to have one such character in a name (but not two, that is dissallowed by the naming gods) - but it doesn't show on your character sheet when you change it. Helskägg turns into Helskgg. It however turns up as functioning full name with the ä as a prompt text when recruiting chars in the tavern during the tutorial. If these chars are not intended to work, just disallow them completly (even if I'd like being able to use creative fantasy names from my youth in my native language)
hoho, nice catch. Think the fix was done for 1 char back in Jan... https://forums.cardhunter.com/threads/while-naming-dudes-simón-became-simn.359/ Doubt they will disallow. Rather have it so all the fonts are supported.