Transaction not yet indexed

2S51DnnYyKLJht2DfcTVgh8rQNjaich8dYXfviNarP8bCQpexyaWAt3b6eHPVb1jxu2TcY5HQg9R3v6u4V6cRPZV

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