Transaction not yet indexed

5B21bYKmeuPSLVQv1dG5hndHhH1couW6Mvg678ejc3oxmZwJ8niZEtdn96dN6UHckWC2pgdwdeVfzLSSTvSCKDP1

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