I had manually logged out a little earlier. I was trying to replicate the report about being unable to chose the 'Gramps' project & thought the person might've used the 'Login Anonymously' option. But I was able to switch between 'Features' & 'Gramps' projects even then.
After I logged in as me again, I was booted out a couple times in the next hour. Seems to have settled back down again. So that could've been a bit of cache bouncing. The lag still makes it pretty darn unresponsive though. Maybe the database needs re-packing?
Yeah, that Security token time-out has cost me some really detailed Step-by-steps on the iPhone. (iPhones completely flush browsers forms when you 'go back' after Mantis reports security the failure. At least my Android only flushes the pull-down menu fields.) I had to hop away for a while to calm down. Couldn't walk since I was hopping mad.