Transaction not yet indexed

21CU3kTCMSV48obmG5YfiVWdVNNzNaVDR7toLHa7nemWF8kPcBFHr6XKXe1Z4xpTRq3siULPp8MdkjB69CvpuvH3

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