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I believe this is happening because you have downloaded the global profile client configuration from the vWAN and not from the Hub (of that region).
Refer : Generate client configuration files | Global vs Hub
There are two different types of configuration profiles that you can download: global and hub. The global profile is a WAN-level configuration profile. When you download the WAN-level configuration profile, you get a built-in Traffic Manager-based User VPN profile. When you use a global profile, if for some reason a hub is unavailable, the built-in traffic management provided by the service ensures connectivity (via a different hub) to Azure resources for point-to-site users.
To download Hub profile : Download a hub VPN profile
Can you please redownload the Client configuration from the vHUB and not the vWAN and see if this error is reproducible?
Thanks,
Kapil
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