Transaction not yet indexed

21F28vTu6m8UuhdQ5DfNFkKfUt3XwkBYEqRpJ9CFJuvg9UNoMncg6TnaNEo8RSnsJAC4BiibVJYFTrXL4MiS2MFr

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