Transaction not yet indexed

21c51jknChduhpfWqhh2kZHXoZSB6XLyNwQsPLnk5CQPcNNxxJ83zsT9NqWajxSN7KYQqWSmZB3GqA6HVaH3ry5z

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