Synch failure in authentication procedure

hi.
in the afternoon,we connect one gNB to the free5gc. However we find that the the core didn’t do well on the resynch process.
Core send authentication req to UE,UE response with Synch Failure with AUTS.however the core only do the second new authentication req.with the same sqn.butregister.pcap (1.3 KB) , the core shall update the sqn base on the sqnMs. after the second authentication.req get failure response. core reject the authentication.
i attached the pcap for reference.
br,thornton.