Transaction not yet indexed

21b7NUpCZVSpc1tjrfUnAKAdPfeeE4BgjfbqNs6nuoHGi2od82rke7X6gBFuJYovxBNvpt7H62Y5sYVjiVKFomv5

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