Openevpn does not work on the second wan

Hello to all,
After installing the latest firmware, the failover works but I still have problems.
My RUT950 has:

  • two wan one main and one failover
  • a VPN connection (openvpn) with our internal network

If the main wan is active, the VPN connection is established, if I do a traceroute I see that the traffic is rotated on the right wan

If the main wan falls, it activates the wan 2, I see the transaction on the failover , I see the main down and wan2 up but the VPN does not set up , if I do a traceroute I see that the router continues to route on the internet connection of the main wan

To be more clear I can send log screenshots etc.
Can you please help me? It’s a very worrying problem
Thank you very much

One thing I noticed is this in the route, when it’s active the main wan find:

default 172.200.0.1 128.0.0.0 UG 0 0 0 tun_c_VPN_CRI
default 10.200.88.254 0.0.0.0 UG 1 0 0 eth1
default 192.168.200.254 0.0.0.0 UG 2 0 0 eth0.2

after failover or when it passes on wan 2 I find

default 172.200.0.1 128.0.0.0 UG 0 0 0 tun_c_VPN_CRI
default 10.200.88.254 0.0.0.0 UG 1 0 0 eth1
default 192.168.200.254 0.0.0.0 UG 2 0 0 eth0.2

therefore there is no switch between the wan (eth1) and the wan 2 eth0.2 so it never connects to the public ip of the openvpn server since it always tests on the wan (eth1 that is down)
Finally if I disable the wan (eth1) here I get

Destination Gateway Genmask Flags Metric Ref Use Iface
default 172.200.0.1 128.0.0.0 UG 0 0 0 tun_c_VPN_CRI
default 192.168.200.254 0.0.0.0 UG 2 0 0 eth0.2
and the vpn on eth0.2 wan 2 is working great

What can it be?

Dear support,
we have 13 riuters with this situation , we are without a backup connection, do you have any suggestion to fix this trouble?
Thank you