Transaction not yet indexed

MmtUpKLMaY4UaeUQ5np2SasKti7qbGCEF1dWfD7Y1cdvirSrkXgEyLCuft1aBBcz9uXP6EmAFpU2JXRTcJoHaai

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