Transaction not yet indexed

21Npp6RdU1fkQXoSiJKQaCAsPFjDzNbsv341c6ByVyn3BkdqNGbBmonsZ6muFrr5CH9gHDbjqzT7ubSQEFLXLM7a

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