I have Office365 and made the mistake of signing in to another Microsoft account that I mixed up with the one that I used before.
Being logged in with the right Microsoft account that also has Office 365, I cannot get to oneDrive,
the website does not load at all and hangs, showing the default about:blank.
If I click on a oneDrive URL of my history, I get to the wrong Microsoft account to open the wrong oneDrive, but it shows an empty oneDrive at least. If I switch in that moment to another oneDrive and choose the one of the right Microsoft account my_mail.com, the website stays blank, but at least, and not as before, the browser shows the URL https://onedrive.live.com/?gologin=1&login_hint=my_mail.com.
I guess this is not even a problem of the other active Microsoft account since I cannot open oneDrive in the right account anyway, but you never know.
How can I enter the needed account's oneDrive?