Transaction not yet indexed

Nkk6kpC4ZEt26G9Rjcn8opVCZSVv362VXEqec7Qn31UvSAATfSXLF7WLXc5oe858vGwt9TLsfjhRC8V9uMGP2cU

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