I have an ARM-based VNET that used to have a virtual network gateway. It no longer appears. I tried to create a new one, but I'm unable to select the VNET in question for the new gateway. The VNET has a subnet called "GatewaySubnet" as required by Azure.
The original gateway appears to be truly gone as I was able to delete "GatewaySubnet" and recreate it. However, even after doing so, I'm unable to create a new gateway. I already have resources in this VNET, so I don't want to start from scratch.