New Microsoft Edge and Outlook.com Login issue

I have the latest and greatest versions of W10 Pro, Microsoft Edge and Outlook.com installed on several systems. All of a sudden several days ago on one system - when I open Outlook in Edge it automatically signs me in just like it does with Chrome and the older versions of Microsoft Internet Explorer. Something changed to make this happen? However, on all the other systems I have to go click the "Sign in" box to get Outlook to open emails etc. Any idea on what I've got to do to make all of the systems act the same - that is auto Sign in - would be appreciated.

Just as an aside, I think I like the new Edge but... it seems to have problems with auto sign in or at least plugging the Log in information on several sites - forces me to pick the Login information from a list. The first on on the list always works. Again, don't have this issue with Chrome or the old IE. This may be related to what is going on with the above issue?

Thanks all. The solution seems to be to log out and then log back in to Outlook - then Edge "remembers" to sign in automatically to Outlook the next time it is opened.