Transaction not yet indexed

MM6JmdZEAe7rS5ixr3MTLEpeg9RfQEwzz7ggRYorC7zA9E2msnJXpowRPFbo7MC1Ha4CNuFbs4VBhCkdfkAfPA1

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