Thanks for the reference!  Both 31249 and 31250 entries were simply missing in the sequential order.  I created them and rebooted, but to no avail...it still wants to move the file.  Odd, but as I am having no other issues, I won't fret about it.  I can always use the context menu, or print from the appropriate application...just found it strange. Absent any sort of systemic issues, it's not likely worth a lot of time to chase down in my case.  However, it might be nice to be able to repair these if they get badly messed up somehow.