Missing quarterly financial data
Under Financials quite many companies have missing quarterly data for income statements and balance sheets. These companies still have annual data intact. Could you please update the data with your data provider?
Example of some tickers with missing quarterly financial data which should help you to find if there is a common cause for the missing data.
For example Helsinki, Stockholm, Copenhagen stock exchanges seem to have quite a lot of companies with missing quarterly financials but I believe this problem persists also on other more major exchanges. I saw that you are using data from Morningstar and on their page this data is available.
I believe this might be a problem which is caused because some of the data is not updated for some reason.