Transaction not yet indexed

1Xop21Fuejs9oPQVT2XfPwxtxnx8QbEzBiXEN9ru6aH3TSpWW9iomvNAk1gaxVbfumRuVwQFDZXUZzKQ18gYiAN

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