Failed to save modifications to the server Error returned An unexpected error occurred file tmsavepointvalidation cpp line 458 function TMSavePoint VerifyProxyCreationAllowed

Question

I hope someone can guide me to fix this issue, I'm not sure what is causing this issue, I'm connecting Power Bi to multiple .xlsx files, and I'm appending the data in these files, however after the recent update for Power Bi Version: 2.79.5768.721 64-bit (March 2020)

I'm unable to refresh, and I get the following error for all the data sources.

Answer 1

Even I have faced this error and it was not loading queries for me but in actual queries were loaded in power query but once I do close and apply it keep on going and threw this error. Somehow, I have managed to fix this by upgrading power BI to may month. You could try the same.