I'm trying to connect to a cluster with Runtime 13.0 and Unity Catalog through databricks-connect version 13.0.0 (for Python). The spark session seems to initialize correctly but anytime I try to use it, I get the following error:

{SparkConnectGrpcException}<_MultiThreadedRendezvous of RPC that terminated with:
	status = StatusCode.INVALID_ARGUMENT
	details = "Missing required field 'UserContext' in the request."
	debug_error_string = "UNKNOWN:Error received from peer  {created_time:"2023-04-27T09:32:18.370432594+00:00", grpc_status:3, grpc_message:"Missing required field \'UserContext\' in the request."}"

I've tried starting the session through a configuration profile, through the SPARK_REMOTE environment variable and through plain code, but all these options return the same result.

Any ideas are appreciated