Checkout keeps refreshing

[GeertGK]

I tried running postcode Postcode API V3.1.9 and 3.2.0, both experience this problem. Checkout keeps refreshing when switching Shipping option.

Running Magento 2.4.3

I have a checkout with Geissweb EU Vat, tried all combinations and the Postcode API is the only one that persists with the refreshing issue.

[JerrySmidt]

Do you have a staging environment where we can take a look a the issue? You can contact tech@postcode.nl about it.

[GeertGK]

Do you have a staging environment where we can take a look a the issue? You can contact tech@postcode.nl about it.

Thanks for your input. Already tech@postcode.nl half an hour ago with all the details and links to staging environment.