Hello @LeoRickli 

Are you setting apply_policy_default_values?

https://docs.databricks.com/en/administration-guide/clusters/policies.html#:~:text=Default%20values%....

After you update a policy's definitions, the compute resources created using that policy aren't automatically updated with the new policy definitions. You can choose to update all or some of these compute resources using policy compliance enforcement. See Enforce policy compliance.

Thanks!