Transaction not yet indexed

NpkDEWpuSC8JP8z6Seta4nwJ8fMj8dVogrGnRzAfmbdXS5yenaaHRnXTUs2mYRz8MEgoQrVXnYkey4juUmSgRD6

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