Until today, Excel was signed into my 365 Developer account, no problem.
Problem 1: Now it complains "bad username or password". The top of my Excel window says: "SIGN IN REQUIRED".
i can log into my Microsoft Account on the web with exact same username and password, no problem.
i use microsoft 2FA. It works at the web-login, no problem.
Problem 2: If i set a reference in a VB project to an Excel .xlsb file stored on a local disk, the reference is created, no problem.
But when i close and re-open the same book, Excel complains "Sorry we couldn't find https://d.docs.live.net....".
When i close this alert, Excel crashes.
Alternate problem: When i try to save the file which references an external .xlsb file, Excel hangs.
My OneDrive app reports "Up to date", but i'm not 100% positive the Developer account and OneDrive account use identical email-address. I don't know how to find out my Developer account email-address.
I reported these two problems together, because they both seem related to cloud, and both started at the same time. But they might not be related.
