A dataflow that has been working for 8 months started failing this morning. We can not refresh or edit the dataflow which is preventing us from examining and correcting the problem. We've tried to ...
I'm having the same issue. Looks like power query is breaking anytime it's launched and the mashup text holds corrupted queries from everytime that user tried to edit a query. I switched browsers but the mashup text is still a massive list of query on top of query. I don't have the orginal queries so I'm stuck in limbo. I might be able to rebuild them and upload them, but if they break again I'm stuck in the same spot!