Shipping Block - not being able to retrieve the carrier rates

[Mariusz_S]

I’m trying to use the Shipping Block - one of the custom block contest winner.

For some reason it won’t pull the rates for my UPS account that’s already connected
(Shippo allows you to bring your own courier account and your own negotiated rates).

I don’t think it’s the format of any of addresses that’s causing the issue as I’m able to retrieve the USPS rates for US based addresses.

Might be niche but did anyone successfully used the block with their own carrier?