MultiWan on VLAN and Subnets

[chano]

Hi everybody!

i`m having a problem with fail over and subnets

This is my setup

WAN1 with static IP
WAN2 with static IP

LAN interface with 30 VLAN's /subnets. Each vlan can see other vlan's
Every vlan/subnet has a default rule to allow in/out traffic via default gateway
Every vlan/subnet has a 192.168.xx.0/24 subnet and 192.168.xx.1 as default gateway of it vlan

For the gateways

Gateway group T1
WAN1 1
WAN2 2

Gateway group T2
WAN2 1
WAN1 2

The WAN1 gateway is acting as default gateway, the tear scenario isn't enable

The problem:
Everything works without problems untill I set Gateway group T2 to subnet XX as defaul gateway in the firewall rules of that interface.
Once i do that, in a matter of hours, all subnets are routed outside the gateway for that subnet
When i do a traceroute on a computer belonging to subnet XX, every other of the 30 subnets are looked up outside my LAN via WAN2 (T2)
I've been reading about Static route filtering. but i need yout advice to aim correctly to resolve the problem
Thanks in advnace!
Ps: Excuse my english.

[Derelict]

https://doc.pfsense.org/index.php/Bypassing_Policy_Routing