Transaction not yet indexed

U91n8qEvrrcNgiKpRLoZQCARjZB33TuqfZrUtdVjPYUbUdCi3k6j6pJcjVieJPhJYmhzbMo2Y2bdMekj1J2M2PJ

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