Transaction not yet indexed

MecPD5sw4q3fCD8k1sjNExpMb6X8LL7eC3xuCPCM4zW8MwFqvcCVf8S2GNfCA13yERJa9Beq7Ek4zy8jjqbtDD6

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