IPSEC stop working after upgrade to 6.1 from 6rc9 on ccr16

I have 2 ipsec tunnels, and 1 of them stop working. I found this message in logs “ipsec,debug,packet send packet to xxx.xxx.xxx.xxx[62465]” wrong port, why? must be 500
where xxx.xxx.xxx.xxx external ip on another mikrotik rb750gl with v5.25


I try upgarde rb750gl ti 6.1 with no effect =(
i try use rb750gl with 5.25 and rb450g with 5.25 work fine
i try use rb750gl with 5.25 and rb450g with 6.1 work fine