Transaction not yet indexed

21Ub28nn1eMhVLPhAAixmjsxpFuPPjnpJrJz3UqFUg6y3ghQrkNoRC7e7W2PCtsDRPZc369ZDgTdxZ3Dx8ezPgmn

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