Transaction not yet indexed

ME8f9JXNFc58eMCc7SoTj6bJbUCF5XBSCP9Mh2fSCRxZ5QysVBcAKwa6ygBiGLQQuehU4oYiTxyx5iWVVJgnAp8

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