Your English texts reach every language of the login
<zitadel-login> now falls back to your en entries in locales for any text the visitor's language has none for. A step you labelled only in English reads in English for every visitor instead of showing raw keys, and visitors in a language without built-in texts, such as French, see the English texts you changed.
The built-in German and Italian translations still win over your English: add de or it entries to change those.
Pull request#2175