I have noticed this strange behavior with Pbix files created using Power BI desktop. We have created data sets and published to power bi online using febraury 2017 version of Power BI desktop. Now, i installed the march update and when i tried to open the existing pbix files, it throwing error.
This makes us to create the data sets from scratch and republish. Can any of you explain this behaviour and how to resolve this issue,? As it will be a hectic task to recreate all the data sets from scratch.