Originally Posted by vessbot

I've never had this happen, do you have any more details of exactly what happened?

In in the interest of having all the bases covered, I'll note that when you're cleared for a seat you disappear from the checked-in list. (I'm talking about the standby list on the mobile site. From left to right, tab #1 is where all the nonrevs are listed but not necessarily checked in. Tab #2 is standbys that are checked in. And Tab #3 is standbys that are cleared for a seat. When you are cleared for a seat you disappear from #2 and appear in #3)

And like Baradium noted, even if your listing does get dropped somehow, when you get re-listed you'll be in the place in line where you belong according to priority code and DOH.