This template can never deploy because there is obvious issue.
You had added a suffix in the virtual network name, but when specifying the values for variables "staticSubnetRef", "sqlSubnetRef", you are still using the original virtual network name without suffix. (AzureDeploy.json line 421, 422)
In the provisioningVMx.json, when creating availability set for sql VMs, you had specified "platformFaultDomainCount" as 3, but for some locations, only supports 2.
--------------------MESSAGE FROM ADMIN, DELETE BEFORE SUBMITTING----------------------
sqlvm-alwayson-cluster
Issue Details
This template can never deploy because there is obvious issue.