Static routing using less specific route 7.0.14

We are currently deploying a Fortinet at a client (ver 7.0.14) and have added two static routes:

192.168.0.0/16 -> LAN

192.168.100.0/24 -> Port1

Any traffic sent to the 192.168.100.0/24 network is still sent to LAN.  We have reduced the AD and Priority for the more specific route, but this has still not helped. When checking which route is used for traffic to the 192.168.100.0 network the CLI output shows that the 192.168.0.0 route is used.