Wireguard VPN only works on active gateway

[fgendorf]

Hi, I have a opnsense with two ISP,  both have their IP address, but for incomming connections wireguard just works with the active gateway, if ISP1 is active I can connect to wireguard in his IP address, but don't on ISP2
I switch the priority and ISP2 became active, wireguard on ip from ISP1 stops and works on ISP2.

All other services accept connection in both ISP, I miss something?

Thanks for help