Transaction not yet indexed

21jk4FcSP9AMELJbPPjqQ8tb3ppCLes3dTAACUSMYi8viLKf4Y1QyNJSZnvbFE8M6H3XEpNcxpPYT1dGS2NrENr2

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