YES - we been working with Xerox on a fix for this very problem, It lloks like it's going to take a patch release from Xerox.
We recently upgraded to Freeflow server version 21.1_SP-1 (with iGen5).
We use the accounting log every week to verify paper usage and compare it to our paper inventory.
Today, I noticed that completed records are randomly being skipped in the accounting log caused our paper usage to be inaccurate.
I compared the accounting log from yesteday (Monday) to what was actually printed, and I was able to see exactly what was skipped.
Anybody else run into this?