Transaction not yet indexed

MmthBJCyKaEW49vMC8sx4B4GLWu5mmc8qP6MdZQQfb4vhr8fEXJeMBgyozCFsJ4YwftAS11fpJ9iLKt5qAXW8Tf

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