Check Below1) Hope have "set session-pickup" enable enabled under HA2)
Hope if have udp-connectionless sync under ha3) For IPsec enable "set
ha-sync-esp-seqno enable" configure this under phase1
If using AWS_Default, Hope you are aware of the article published
recently , disabling AWS_Probe
https://www.youtube.com/live/YeAVl55olss?si=vzubt79WdPcnt-pl