Transaction not yet indexed

NmM2ffJmSagNZ63smfsmqCDUGEKsYUjBGbWM8mm5dRTLG5e3q7EUYfx6y7c8g2ZbRXRsd59kmYrEQ1VooupyogC

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