Transaction not yet indexed

tu8mC1eG59FNbp7oNzJpHwpWqqoSR4fgemNY6Wc56aRf8aQo8FubnrfmjDfdE8Qvx1EwMVbx3eo5bAFvVkAAvUZ

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