Transaction not yet indexed

21b6uQCQNkZ81XsqPEds3Qyz3X9af3XrYnnE1Yb5sKtF8kaSnx1m5e3Ad5Dtti5XDPHAzDR7Gh5STZa6PUaPWJs1

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