VNET Gateway Provisioning "Succeeded" but "Not Connected"

From @weatherills via Twitter:

"Odd problem with Vnet-Vnet gateway connection, says succeeded but never connected. No errors or status changes. Provisioning state is "succeeded" but Connection Status "not connected" 

"no local gateway, 2 vnets, one in uswest, one in uscentral, they never connect, connection shows up in both Vnet01 and Vnet02"

Thanks,

@AzureSupport