Dataflows not refreshing

It doesn't give me this information because in the Dataflows it just gives you a download of the errors which don't include the cluster information.  It does look like there's something to do with me having multi-factor authentication on my Azure AD and a restriction somewhere in an admin config that is stopping these dataflows refreshing ... but it's not clear from the errors or the message you have shared as to how I can resolve it. 

I created another one from scratch with the same issue.

I really apprecaite your help on this, I think dataflows are going to be awesome and they were working for a few days and then just stopped, I will take a look through our admin logs and see if I can see any changes.