Transaction not yet indexed

AMmomKsQY9SNMAaQ6P14gJUPqkf3F7knaS2rASqKG6Hpt1NvrBTxtgqNuvTBfoHcq4a3w5RqjNNMVYC4wCyfSFC

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.