Transaction not yet indexed

Ku6sJRhoJXCkzRajJUH9bMQF7nr8Y8F1zUUxtbvEJZ74DJQPdPhFQNbcAibZkyZN3rtbv1zBuLNumLS3MGJMLu4

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