Well, one more thing
I noticed that Stephan Ambrosius has DL and DR set as competent. But I can't recall him playing there in the last years and transfermarkt also only lists DC as his position: https://www.transfermarkt.de/stephan-ambrosius/profil/spieler/327536. I think he should only be a DC, which would also prevent AI managers from wrongfully moving him to a wingback.