[Question] Help in VPN Firewall configuration

[badstorm]

Hi, I can't figure out how I need to configure OPNSense to work in this scenario.

I have an OPNSense server that has configured three networks and one vpn (in addition to the WAN):

LAN: 10.50.140.0/24
OPT1: 10.10.43.0/24 - > Router A
OPT2: 10.10.44/24 -> Router B
VPN: 10.100.140.0/24

The two OPT networks are connected to two other routers, respectively.
On OPNSense I configured a VPN and set the three networks as local networks.
On Router A and B I configured a static route from the VPN network to the respective OPNSense IP.

However I cannot reach the computers on OPT1 and OPT2. If I do a traceroute I see that the request stops at the ip address of the vpn server (OPNSense):

traceroute to 10.10.44.204 (10.10.44.204), 64 hops max
  1   10.100.140.1  24,026ms  23,306ms  23,625ms
  2   *  *  *
  3   *  *  *
  4   *  *  *
  5   *  *  *

What did I forget to configure?

Thanks