Cannot access OPT1 clinets from OpenVPN

[badstorm]

Hi, I have this scenario:

OPNSense as Gateway with 2 phisical network cofigurated like this:

eth0 -> WAN -> brdige1
eth1 -> OPT1 -> bridge2
---    -> LAN -> bridge3

On the LAN i set all my server and on OPT1 are the desktop pc.
I create a OpneVPN that share LAN adress and OPT1 adreses (Local Network). From VPN i can access LAN clients but not OPT1.
I open all ports (for test) in the firewall settings but no way.
OPT1 is connect to another gateway where all pc are connect. Is this the problem? I need to set some routes to that gateway?

Thanks