Hello,
Try changing one of the LAN networks to something different, like 192.168.3.0/24 and add a route to it. For example, on RUT#2 set LAN to 192.168.3.1/24 and add a static route to 192.168.1.0/24 via 192.168.2.1. On RUT#1, add a static route to 192.168.3.0/24 via 192.168.2.2
Kind Regards,
Andzej