bbPress.org

Ipstenu is right when he says: “the other thing to do is re-replace all your AUTH/SECURE etc keys in BBpress with the ones from WP. ALL of them. Every last one.”

Even though I followed the video exactly, my define(‘BB_LOGGED_IN_KEY’ was missing a in the middle of the string (even though I had copied the whole string from ‘ to ‘ before. So apparently at 14:00 in the video, when you save the settings, bbPress (can) screw up the BB_LOGGED_IN_KEY that you put in, when saving it to the actual cfg file.