Mo. Rev. Stat. § 400.7-401: Irregularities in issue of receipt or bill or conduct of issuer.

The obligations imposed by this article on an issuer apply to a document of title even if:

(1) the document does not comply with the requirements of this article or of any other statute, rule, or regulation regarding its issuance, form, or content;

(2) the issuer violated laws regulating the conduct of its business;

(3) the goods covered by the document were owned by the bailee when the document was issued; or

(4) the person issuing the document is not a warehouse but the document purports to be a warehouse receipt.