Transaction not yet indexed

NMKM2bXUDNPwRXtkULE1DgiqQ4DZ6cr9wMJdh1dLuD6FQG5s3H2fLv36wQjLUhPauq5ZjmPCYuMiMMrYCgNjLgD

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