i have been pulling historical data using get_timeseries and today it is returning 'Invalid RIC' for all.
if i copy this rics to eikon toolbar i see that it is in fact a valid ric with the data etc..
df = ek.get_timeseries(ric_lst[i:i + 4], fields=['CLOSE'], start_date=trade_time, end_da te=end, interval='minute')

