Transaction not yet indexed

5k91i5gJuPpnD82uSXUfdTcjWWM2ZaAGUGQsfRnKjuWbhCvXUSahuWXqmdZRYBiMjSncmAm1gQsoMJHWBvJ8EDP2

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