Transaction not yet indexed

MmdKNPiPDXtX3nRqTpVJPUUj6ga1ymBfvuv4e5RXdR7JiGJdtZuEw6FfF2HJSk48zXB3FjnNCXVAQ2VKM2gp2Va

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