Synchronize IAM

I updated the SF and the IAM_SF tot 2021.2.

Now I’m testing to upgrade the live IAM tot 2021.2.

I have a small rol issue so I want to correct this role in the production application and then synchronize with IAM. 

Alltough after upgrading the IAM I try to sync and then I’m running into this message. The iAM 2021.3 is required. As far as I know I updated tot the latest version of 2021.2 last week. Why is it asking for 2021.3