systemd-networkd.service cannot add default route

Hi All

I was hoping you could help me with adding the default route to my system, since the sample configuration I found on the internet does not work.

WIth the following configuration I am unable to add the default route to the system.

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However, when I type "ip route add default via 10.209.16.254" it adds the route with no issues.

Does anyone know if this is a bug or something I am doing wrong?

Thanks

Lucas