Transaction not yet indexed

ymyMYD4wo5zEZQRhdzD7p9XL3U6aSMdW6uys5wiQTwbuPMz2pDbT9iqFtpkisj1hkB5LzWCRyaX2SFNShWy5AP7

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