Since a while i have to keep logging in every time I want to visit iModeler. Never been like this before. Anything new done to the webpage?

I figured it was my browser, but may not be. My work around if it happens on a device I was previously logged-on is to select one of the "menu" tabs in the upper corner (people, groups, etc) and suddenly it logs you back in. Results may very, and understanding why this happens would be good.

Same here, on each machine, various laptops, chromebook and smartphone.
Various browsers as well.
However, I do see that happen on more websites since last week.

It happens to me about once a week. I sent fearless leader an e-mail.

It has never happened to me (I always log in on a PC)