As a rubbish fix, close your eBay windows. Go into chrome settings and
clear cookies and history. When you open eBay again you will have been
logged out. Unfortunately you will have to do this every time you need
to change account.
Yep I have had this issue for months too. The temporary solution is when
you log out and try and sign into account b is to select the account you
want and click next, dont enter the password at that time, click change
account again and click account ...
