Up until a couple of weeks ago I was logged in SE with two different identities. This one for MMA, Math, Physics and a 'secret' one for drugs, weapons and sex (or something like that...). I was able to move from one website to the other keeping my respective identities (no action was required). So when I was in MMA SE I was Peltio and when I was in the "nakedgirls SE" I was "Mr.Hyde" (so to speak).
Then something happened: I found myself still logged in the MMA SE group but out of the other. I discovered that the only way to get in the 'other' SE website was to log off SE and then logging in again - inputting user name and password.
Happiness ensued. Until I tried to log in MMA SE again. Then I found out I was logged out of that group of SE websites. Again, I have to log off one group and then log in the other, losing the identity in the first group of SE websites.
Is there any way I can automatically switch between identities (without having to log out and then log in) as I have done until a couple of weeks ago?
Is this a new bug, or a new feature?