Transaction not yet indexed

DdNnKo6cGHbhmhEGcS3oFrMKsCYVUS1VR1AAYK5qmv5jeah8vMkbCztw39qiZJSZs9oi3sstWpTkQeCCrSp7GRw

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