I updated to 5.0.4 and I got problem directly. When I first login to the site there is no problem. But when I click on any link or anything else on the site it kicks me out from the login and want me to login again.
In that picture I have attached you can see I am logged out. But the thing is I just logged and all I did was to click on the link Discussion. Here is my site
http://www.riversidegaming.com