The HSS/HLR generates an Insert-Subscriber-Data (Stand-Alone) to the MME/SGSN including ODB parameter with the All-packet-Oriented bit.
Is that cause the deletion of the on-going PDP-context/Bearer?
Can you please indicate evidence in the 3GPP specifications.
If the "Location reporting" was request by the PGW/GGSN (into change reporting action in Create-PDP-context response/Create-Sesssion response). Does the MME/SGSN continue reporting on Cell-Id/SAI/TAI change after ODB was generated.