Rare behaviour on Shopify checkout custom inputs

Good morning.

We have some code for injecting custom inputs in checkout address form.
At first render, the inputs are at bottom of the address form:

If I switch to another address, the inputs are re-arranged:

The method we use for injecting the inputs is:

The code fires at contact_information checkout step.

Is possible to avoid the re-arrange? I mean, we need the address input layout to be always the same.

Thank you in advice.