Issue:
Today I found I am force-logged out.
The site don't even recognised my password.
After clearing cache it allowed me to log in with my account by private browsing, but then all my saves/progresses for any games is missing. Not acceptable.
Normal login via Internet Explorer is possible, but that browser is a crap, I refuse to use it on regular basis.
Chrome is a virus, so I won't even install it.
This could be a result of security updates that were recently installed. Please check the main thread about this and see if the problem is solved after performing the in the OP suggested actions @twillight2.
This thread will be locked and redirected to the main thread about this problem.