Transaction not yet indexed

MkTCFj6pnXqaW67HrpQrLTazZTZWdc75TYqkrCgUBrXcsLPBhmANsLFK8qAbhfDQXFo6jtQdjoMeuwoATaeLrKb

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