GRE/OSPF Routing Issue?

I'm having trouble getting a printer to communicate with a print server over a Hub & Spoke network using GRE/OSPF.

The printer is behind a spoke router is configured as such;

GRE interface - 172.29.99.5

Primary LAN - 192.168.130.33

Printer - 192.168.130.38

We are able to ping (from 192.168.130.38) to the GRE interface of the hub (172.29.99.1) confirmed with tcpdumps.

​

We are able to ping from the hub's GRE interface (172.29.99.1) to the gateway of the printer (192.168.130.33) but NOT the printer itself.

​

To rule out zone forward issues, we set 'all/all' rules on either side and still could not reach.

​

The route policies suggest everything is in order on either side. Could this maybe be an issue with the device itself?