My LB's take REGISTER messages, perform all the AUTH, and post AUTH, the messages are forwarded to my registrar nodes, and are then saved.

what im finding is messages similar to this : 

ERROR: registrar [save.c:599]: test_max_contacts(): invalid cseq for aor <BLAH>

I believe everything is functioning as expected, AOR's are saved and retrieved etc.

but at a minimum, this message is filling my logs with messages that look scary! 

( my ops team should not be expected to ignore ERROR Level log messages )