Problem security scheme with MIUI 11

Hello

I have a problem with the schema of security, I made the update without problem in MIUI 11, but I can not manage to return my schema of security, I can well unlock my MI MIX 2 but when I want to associate a fingerprint or add an email account, the MI MIX asks me a different security scheme that I do not know
I made a reset and factory reset
I downgraded my MI MIX into MIUI 10 version and it works

Do you have an idea or solution for my problem?