How to create more subnets w/ nextAvailableSubnet API?

[pschonfeld]

Hi,
I have a use case where I must create multiple subnets in the same vNet. I wrote a script that uses the API and nextAvailableSubnet tool to grab the address range for each subnet, but I ran into an issue. When the first subnet is created, I start a new iteration to create another one, but because of the delay/caching or whatever, I receive the same address range that I already used for the previous subnet.

I tried two methods to find out what's going on:

1. I used delay and made another API call later. This helped, but only partially. The first response is always the same address range anyway. The second call is usually available address range.
2. I saved the previous address range, compared it with the new one, and called the API until I got a different address range. This usually takes around 10 sec and 8 - 10 extra calls.

Would you happen to have any ideas on how to solve this issue in a way that's a good way?
This function is a lifesaver for us, but I need to figure out how to solve this, and I don't know if I'm missing something.

Many thanks.