Transaction not yet indexed

53s21MVnHfY3gH2TuFJPPx6WG5mPW1a9N3VfJXXFbBqDoEES2mLsr2HdHZJc9kZbpTCNqB5VXXmbvYxMU98UkhU5

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