Transaction not yet indexed

Mu8ATXC19dY5Pgm8iynjB8G1vSjPRWASusSxax7jsEeUfgC5F3N1NmwYeYUUXMUHug2XJtuy2ZXjDU6rWyGFJbQ

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