Could a US based seller test somthing for us please?

We are a UK seller and 2 weeks ago all our listing become unable to be sent to US FBA, Amazon helpful as always wont give us any reason why, everything has been hard gated and can no longer be applied to sell.

An example is ASIN B087C5BG19, if a US seller is able to tell us if it is hard gated for them as well (do they have the option to sell or even apply to sell), it would be a massive favour for us and we could at least know if it is becuase we are a foreign seller. Or is it the same for everyone?

Thankyou.