Public preview feature "AllowUpdateAddressSpaceInPeeredVnets" not working?

Mark Fuller 42 Reputation points

I have successfully registered this feature in my subscription (12hrs ago), but am still unable to add an address range to a peered vNet either via Azure Portal or Powershell. Error message is still as before enabling the feature - "ErrorMessage: Address space of the virtual network /subscriptions/<subscriptionID>/resourceGroups/RG1/providers/Microsoft.Network/virtualNetworks/RG1-vnet cannot change when virtual network has peerings."

Azure Virtual Network
Azure Virtual Network
An Azure networking service that is used to provision private networks and optionally to connect to on-premises datacenters.
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