Transaction not yet indexed

MGm66LzdJA1UcNNbHT4U1cJkCKP6qM1H3CN1mYLRnvgKSQongcrVBffxfP1XFubY7Xda9Vd4Vg5pRcLCm1MqnR2

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