Transaction not yet indexed

21m8DPBZuYRUDS4zTMCoN2FhLvSDMEWekHZPgMdf3v6eKmP5HmowVmLzGGFpUVMCjE4bxN2UWTmyfVpzLezNkwY1

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