1. Since the June 22 Update the the registration dialog to enter a e-mail adresse keeps popping up every time you start PowerBi Desktop. We only use PowerBi local, no need for registration. This dialog can no longer suspressed via regkey Computer\HKEY_CURRENT_USER\SOFTWARE\Microsoft\Microsoft Power BI Desktop\ShowLeadGenDialog=0
2. A few clients are no longer able to start PowerBi Desktop, because the message "Couldn't load the schema for the database model" appears, doesen't matter what kind of report we try to open.
Whether you have used the web download version or the Microsoft Store version of Power BI Desktop, as far as my test, it seems work fine with the web download version when I used the latest version of Power BI Desktop
Whether can open a new blank report to connect to the same data source in this issue, or these reports can be opened under previous version of Power BI Desktop