Series and Movie folders only in small caps

[Manlycookiebear]

Since the last Jellyfin update to 10.5.5 the Autoorganize Plugin is working again, but for some Series it's deciding to create the season folder name only with small caps. For example:

 /media/Video/TV Series/better call saul/Season 2/S02E10

What could be the cause of this? It didn't do that before the last update.

Thanks for your help!