Transaction not yet indexed

21UTEzCfaFFeSR4GkouJCi23hWeKi1eWuRxd5AK6WBAoMGWSe5we4fX4Qbgch2cSES8P2pN4wAZYDFEk3mm2dJx6

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