Please add something to the Quick Fields admin (either the MMC module or web admin) that shows whether or not a session has un-processed pages.
I just spent a few days troubleshooting a Quick Fields session that was seemingly "eating" a bunch of entries but not digesting them. We recently tried turning on OCR as a post-processing step for one of our busiest sessions, which caused it to (I'm guessing here) hang up longer than the server's "Inactivity Timeout" was expecting. In the span of about 2 days, we were missing about 8,600+ pages of scanned content that the session had taken in, moved to our "Processed" location, but hadn't actually run any activities on. I had to open the session, hit the "play" button, and only then did it inform me it had over 8,600 pages that it hadn't processed yet.
As far as I can tell, there's no way to know whether a session has "claimed but not processed" any documents from the Quick Fields Agent Admin console, and I still can't find any record of the session being terminated (other than finding a bunch of entries that were saved to the wrong folders because the instance that provides the path via Token Collector was timed-out; leaving the token blank when the next instance tried to pick up where it left off).
Really, I've got a few bones to pick with Quick Fields (like how a terminated session as described above doesn't create any useful errors for the log), but chief among them is not being able to know that a session has claimed a bunch of entries and not processed them. If the QF Agent admin console could show a column of "pages waiting to process" or "pages waiting to store" or at least a flag for "has un-processed pages", then the admin console would become infinitely more useful for troubleshooting as well as for monitoring large-volume sessions. This is especially critical since there's no way to schedule a session to "process un-processed entries" the way the sessions can be told to "Process and store documents," "Process documents," or "Store existing documents."