Failover not killing states once Primary is back up

[bhjitsense]

I use a multi-WAN setup. WAN1 is primary, WAN2 is failover. On multiple occasions, when WAN1 failes and WAN2 takes over, all is good. But, when WAN1 comes back and becomes default again, there is still a lot of activity going through WAN2, as seen in Diagnostics > States. I usually just kill these states and they then go back through the correct DG (WAN1). Is this expected behavior? Or is there something I need to setup to have the states killed when the gateway switches?

[kiokoman]

this is expected behavior.
you can wait for old states to expire or you can manually kill states.
If you search the forum there is someone who posted a script to do that automatically