HI @szymon_dybczak 

1. Yes, we are using UC.
2. Authentication method: OAuth(u2m)
3. Power BI Desktop Version: 2.143.1204.0
4. Yes, we confirm that all the requirements mention in the docs are met.

The error specified doesn't mention whether this needs to be resolved in Power Bi or Databricks, but I can confirm that I am able to refresh the reports form Power BI Service and Power BI Desktop but not from Databricks JOB.