Transaction not yet indexed

Mmc6eTqdnvZoPQeMJppHi3AaayQESEDcrr11TNDegX8o2v3FipwbZfH3vMzsbcNngfbfcn7yYyS3QWJKxiqmuoK

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