Transaction not yet indexed

21X53KBCgQtSNZCqHxVGWNaB34MasZ2BobAQZFfAAbct245gh6mPjRXZCLoBE3gsBoFuPtccChkRHFK6RBc9RsiM

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