Transaction not yet indexed

MD6CC2kXGFAthtMbGjNmzqSiZMsFaFrNMZTUcYTvue9KPr4WJXTrbLjQ5o6WnViRupq4kWuvH3yVKmokuCnAFx3

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