Why Master Password does not work?

I tried to login with my master password but I receive statement that it is not correct.

I am sure that I did not change it and that I enter the correct password. I have now only posting key available.

Maybe it is due to Steem security updates? Maybe some other users have similar problems?

Can restore it anyhow if I have printout of my private keys?

Please help!

UPDATE: Also now, in section permission there is no button "login" near the columns "Active", "Owner", "Memo". Login button is only near "Posting" column.