session expires earlier on community auth

Cookies look normal, and ci_session cookie shows 10 days. Now, when you look in your database, do you see a row in the ci_sessions table with values that look normal? Also in the auth_sessions table?

I found sometimes when I refreshed (F5) the same logged-in page, it generated a new session entry in the ci_sessions, and the key in auth_sessions was updated correctly, so the page stayed logged in

However, after a while (a few days), when I clicked F5 again, then it inserted a new entry in the ci_sessions, but a very short one, i.e. as below

| 6ef552162c671e1e9c8a8759cf9f8309426adf1c | 10.10.1.142 | 1482173543 | __ci_last_regenerate|i:1482173543;

That is when the expiration started.