Unauthorized when executing dataflow in pipeline

Hi,

I can't seem to sort this out;

I'm trying to run a dataflow in my pipeline, which are both connected to a lakehouse. 

All my credentials are correct but I get the following error each single time;

Microsoft.DataTransfer.Execution.Core.ExecutionException: Refresh Dataflow failed with status: Unauthorized message: Unauthorized

I tried different lakehouses, pipelines en dataflows, but nothing seems to solve the problem. 

Who has the answer for me?