Titles & Flairs are slow to update

For some reason some of our users are able to switch or keep previously available flairs & titles. We use SSO & sync group statuses with discourse. Users in question are no longer present at groups granting specific flair & title, yet they have it available still to choose at profile settings.

What debug information could we provide to Discourse community in order to find the source of such problem? I could not find relevant reports via Search