Failed redirects on resubscriptions from account page

[Joakim]

Recently we introduced subscriptions to our hydrogen store.

However when hitting “Buy again” from the account page - the redirect doesn’t work as expected.

For example:
https://checkout.remain.health/cart/CART_ID:1?attributes[from]=new-customer-accounts&storefront=true&country=SE

Redirects to → Cart | Remain

Which returns an empty cart.

Removing the “checkout” prefix redirects as expected

https://remain.health/cart/CART_ID:1?attributes[from]=new-customer-accounts&storefront=true&country=SE

Any ideas what this could be about?

[Bret-Shopify]

Do you have this theme installed? GitHub - Shopify/hydrogen-redirect-theme