Transaction not yet indexed

21LttPo5VfnTwh3MiZy6Zmoke2GGq21xTY8MLrTtQs6MuGHPeb8QjcDVun65h61dWSmnGgq2nzRJdMeuQDoWRWrG

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