Routing issue on a VPN client. Sonicwall TZ300.

Here is a Visio diagram of the relevant network information.

The VPN client uses an application that only works when it is routed through the Vendor router and out the Satellite Uplink. Right now everything is working except the route to the application server for the VPN client.

The VPN client and my router can ping everything on the vendor subnet (10.42.88.160/27). My router can ping the application server (172.16.20.80). My VPN client cannot ping the application server.

Pinging the application server from my router (this works):

[My router] => [unmanaged switch] => [vendor router] => [satellite uplink] => [application server] 

Pinging the application server from the VPN client (this doesn't work):

[VPN client] => [VPN Tunnel] => [My router] => [unmanaged switch] => [vendor router] => [satellite uplink] => [application server] 

I imagine this is route issue on my router (TZ300) but I'm not sure what I'm doing wrong.

Here is a screenshot of my routes - X0 is interface to my lan, X2 is the interface to the vendor lan, X3 is the interface to the WAN (Cable Uplink).