To use an example: The AppGW TLS cert/KeyVault issue.
If it works manually, but not via Terraform, it's the fault of Terraform (or possibly the underlying Go SDK, small disclaimer). The ARM API is used by the Azure portal, as well as all the SDK's.
Of course it's totally possible it doesn't work manually. It did last time I checked, and it's a pretty foundational functionality - so I'd be surprised if it didn't.
If it works manually, but not via Terraform, it's the fault of Terraform (or possibly the underlying Go SDK, small disclaimer). The ARM API is used by the Azure portal, as well as all the SDK's.
Of course it's totally possible it doesn't work manually. It did last time I checked, and it's a pretty foundational functionality - so I'd be surprised if it didn't.