Transaction not yet indexed

MfDmkCqDQqqwt7ijdjXQtA6cNcf97RcyBrrDkY6RyVURYtj7zG7XisWi2gjXux2gHyywKcEiTKXTFAc9vwGDRDf

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