Hi @Ryan Williams ,
My sincere apologies.
I was providing you instructions referring to Azure ExpressRoute Peering.
i.e, Microsoft.Network/expressRouteCircuits
It appears you have been using Microsoft.Peering/peerings all along.
Refer : Azure Peering Service overview | Microsoft Learn
I am afraid Peering services are not supported in Community as of now.
So, I would request you to create a support ticket with Azure to have a deeper investigation of this issue.
Please feel free to let us know should you require additional details.
Thanks,
Kapil
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