Azure RM VM with Subnets issue

[hashibot]

This issue was originally opened by @dennisrd587 as hashicorp/terraform#10744. It was migrated here as part of the provider split. The original body of the issue is below.

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Hi there,

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Terraform Version

Terraform v0.7.13

Affected Resource(s)

azurerm_subnet

If this issue appears to affect multiple resources, it may be an issue with Terraform's core, so please mention this.

Terraform Configuration Files

### Debug Output
Please provider a link to a GitHub Gist containing the complete debug output: https://www.terraform.io/docs/internals/debugging.html. Please do NOT paste the debug output in the issue; just paste a link to the Gist.

### Panic Output
I've attached the crash log

### Expected Behavior
I'm attempting to build out a small environment in Azure

- Vnet with subnets

- resource group

- storage account

- Windows server

### Actual Behavior
I've tried to work around this by commenting out the subnets, and it seems to get past the "terramark plan", but when I uncomment them, I get the crash log

### Steps to Reproduce
Please list the steps required to reproduce the issue, for example:
1. `terraform plan`

### Important Factoids
Trying to build in an Azure RM EA subscription

### References
Are there any other GitHub issues (open or closed) or Pull Requests that should be linked here? For example:
- GH-1234
[crash.log.txt](https://github.com/hashicorp/terraform/files/653739/crash.log.txt)

[ghost]

I'm going to lock this issue because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.

If you feel this issue should be reopened, we encourage creating a new issue linking back to this one for added context. If you feel I made an error 🤖 🙉 , please reach out to my human friends 👉 [email protected]. Thanks!