trouble sustaining/reconnecting with two ipsec tunnels

hey guys/girls,

hope you can help me.

I have a main site and two remote sites.
On the main site i have a tunnel to remote site 1, and a tunnel to remote 2
Tunnel 1 has been working fine for over a year, until i created tunnel 2 last week.

As long as both tunnels are active they work fine.
But when the tunnel needs to reconnect, the SA for tunnel 1 won’t encrypt until I disable peer 2.

Once SA1 is encrypted, i can reactivate peer 2 and that will come up and encrypt as well.

does anyone know what causes the problem (and understand my sketchy discription)


Thanks