Transaction not yet indexed

21eXM5TYaZKPWnGWxDXuw1aiQtJ3ngRetWpqGS1VV8PakwFMLF4Roy3aJQwQFkmUMP3RgVKYrLxuUajH78nL1Hb2

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