Transaction not yet indexed

MY21CUxYVjZUPkWBAyGNRoD6FPzZWHKFQpgJtzpRQe6LwYnSGbowa7PBUh4XxG6picoZaiS25e7YrajYPt8fdMm

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