Instrument field value is not pulling into eikon python api on time series for certain rics.
For example ric ' O-KRINV-P ' , I see within eikon the historic time series values under Field name TOT_VOLUME and within eikon i see the timeseries history but this request on the python api only pulls N/As. I've tried several field names that are populated in eikon ('PRICE', 'LAST', 'HST_CLOSE', etc) but all return N/As, the ric seems to be set up in timeseries as the dataframe returns the correct dates of the data but not the outputs. I've look in eikon quote at display all fields and tried all relevent there.
Any assitance would be appreciated.
e.g.:
df = ek.get_timeseries(['O-KRINV-P'], ['TOT_VOLUME'],start_date=2015-01-01,end_date=2021-12-31 ) display(df)