Logged Out From Jref, but Never Logged Out???

I realize that's a confusing title, but I'm just a little confused myself. Today I went to Jref, but I was logged out from my account. However, I never logged out, myself. So somewhere on the computer's end logged my out in spite of myself. I don't know where, and it may not be of any significance, but I thought I'd let you know, just in case.

Yes, it happens to me, too, especially in the admin panel. It is hard to say what's causing this: server caching, session cookie issues, etc. If it persists, please let me know.

I have had it happen as well but I figured the session cookie expired. It actually should probably expire more often for security.