Two phase invoice missing for first phase?

This is my subscription ID on sandbox
c4ce63a5-a7bd-46a8-997b-d9455fb5268a

I managed to get an invoice when it was just one phase.
But when its discounted on the first phase only. There is no invoice generated.
Even though when I calculated using the order templates calculate api it showed that there was indeed a reduction for that template.
I don’t get any invoice.
But I managed to create the subscription successfully.

I’m on sandbox. Is this a sandbox limitation? Because I did get an invoice when it was just one phase.
We are using the test cards on square.

Regards

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Hey @bTrustedComm! Do you mind providing your application ID (not your access token)? Happy to take a look.

sandbox-sq0idb-VoRB78KTuh4w7ljdWjrYcw
@josh-square Here you go!