I am running WP 3.4.1 with Shopp (latest version) and I have USPS Live Quote shipping set up. The domestic shipping is working fine but the international side of things yields the following error:
USPS — Invalid XML Element content is invalid according to the DTD/Schema. Expecting: Width
I'm not sure why it would throw an error on the International but not the domestic.
Anyone have any experience with this?