More Contracts missing Instrument Token in instrument dump

Hi
I see more derivatives that are missing from the kite.instruments dump. I rechecked my code as well and took dumps of the detail given by kite.instruments. For SILVER, SILVERMIC, SILVERM I am seeing only one record. Whereas most other derivatives provide atleast 3 or more records.
Example of Errored SILVERM

Instrument detail for SILVERM: 1: {'instrument_type': 'FUT', 'tick_size': 1.0, 'name': '', 'exchange': 'MCX', 'last_price': 0.0, 'expiry': datetime.date(2019, 11, 29), 'tradingsymbol': 'SILVERM19NOVFUT', 'lot_size': 1, 'instrument_token': 54408455, 'strike': 0.0, 'segment': 'MCX', 'exchange_token': '212533'}
Error: Next month record not found for derivative: SILVERM

Expected Records for example CRUDEOILM

Instrument detail for CRUDEOILM: 1: {'instrument_type': 'FUT', 'tick_size': 1.0, 'name': '', 'exchange': 'MCX', 'last_price': 0.0, 'expiry': datetime.date(2019, 9, 19), 'tradingsymbol': 'CRUDEOILM19SEPFUT', 'lot_size': 1, 'instrument_token': 54803207, 'strike': 0.0, 'segment': 'MCX', 'exchange_token': '214075'}
Instrument detail for CRUDEOILM: 2: {'instrument_type': 'FUT', 'tick_size': 1.0, 'name': '', 'exchange': 'MCX', 'last_price': 0.0, 'expiry': datetime.date(2019, 10, 21), 'tradingsymbol': 'CRUDEOILM19OCTFUT', 'lot_size': 1, 'instrument_token': 54872327, 'strike': 0.0, 'segment': 'MCX', 'exchange_token': '214345'}
Instrument detail for CRUDEOILM: 3: {'instrument_type': 'FUT', 'tick_size': 1.0, 'name': '', 'exchange': 'MCX', 'last_price': 0.0, 'expiry': datetime.date(2019, 11, 19), 'tradingsymbol': 'CRUDEOILM19NOVFUT', 'lot_size': 1, 'instrument_token': 54937607, 'strike': 0.0, 'segment': 'MCX', 'exchange_token': '214600'}
Instrument detail for CRUDEOILM: 4: {'instrument_type': 'FUT', 'tick_size': 1.0, 'name': '', 'exchange': 'MCX', 'last_price': 0.0, 'expiry': datetime.date(2019, 12, 18), 'tradingsymbol': 'CRUDEOILM19DECFUT', 'lot_size': 1, 'instrument_token': 55016711, 'strike': 0.0, 'segment': 'MCX', 'exchange_token': '214909'}