Predictive routing skill mismatch during zendesk migration

Hey everyone, I’ve run into a really strange issue with predictive routing skills. we mapped zendesk tags to gc skills but agents stay offline in the specific queue. api returns 400 bad request when trying to manage user routing skills. timezone is cet so maybe a sync lag? in zendesk this was instant. tried clearing cache but no luck. is there a delay for skill activation after bulk import?