Transaction not yet indexed

NP88fiSp1MD5zm6wPrxdybPnEFuKnHqEAYVaw19b6BzXe5Hngd9LPHbTeeHUS7fYXF7ZRTshxJsMZzN9f9Y31FP

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