I always recommend to Power BI authors that report creation & editing should happen in Power BI Desktop and to just ignore the edit capability in the Power BI Service. Usually my reasons are concerned with (a) which version is the latest version and (b) having versioning history, and (c) reducing the risk of someone overwriting someone else’s work because two different reporting editing/publishing options are in use. These are very valid concerns, but I’ve discovered one additional problem that could easily confuse some people: (d) the side effects experienced if you download then re-upload a web-created report. Let me explain…
Read on for that explanation.