Repost -- reservations get deleted in resources.nsf after upgrade r5-r6

Right after upgrade from r5.0.11-r6.5.1, reservations get deleted, sometimes in a matter of 15, 30, and once I noticed in about 5 minutes. I made note of documents in resources.nsf db. Then created a reservation and see that it’s showing up. Run the AutoprocessReservations agent manually and see that the reservation gets deleted. Note that now number of documents is 1 less after running agent, so I know the document is deleted not just disappear from view

Thanks in advance!

/Mariana