Transaction not yet indexed

21Cf7TrdCaTkKTMGFwbta7HnzTugELj3S61GBuxLNS13x68yQa7UNBfCSBX6FUNB2mV2n2oLjVGzbG3xVikAJmVk

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