First all first, I am free Power BI desktop user, so I am not Signed in and don't have an account in Power BI.
Since last Update I encountered an issue, and that is spamming with Sign in window anytime I am trying to use some templates that I downloaded from internet. I NEVER had this issue before, I could open all the templates (pbix files) without any trouble, but not since I open I am constantly getting Sign in window and can't get rid of it actually. So, I must terminate app to close it.
I tried to reinstall, to fix it, but problem is still there. Do anyone got an idea what could be a problem? Is Microsoft "blocked" usage of custom visuals for free users or something?