Transaction not yet indexed

DdngNwbXG4r9GTZ1ZhjfyaTbQge2P9qHch3vyAKZMaECwvYj7WFi3paw47k85AzQ58Q5FeEcX3ii2qiKmHq2Pu5

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