試著將teams cache清乾淨.
使用者帳號為office 365帳號，email正常可使用，web版teams也正常。
但是應用程式的teams一登入就顯示帳號不存在?
最後試著將
1. Sign out on Teams > Quit Microsoft Teams by right clicking the icon and select Quit.
2. On your keyboard, Hold Windows key and Press R
3. Cut and paste %appdata%\Microsoft\Teams in the RUN then OK.
4. Delete the contents of the entire folder.
5. Restart Device > Restart Microsoft Teams > Sign In.
ok
