Tag History - Data Integrity of 0, gaps in data on trends

I am having several gaps in my trends and have been researching it and found that data integrity is popping up as 0 sometimes. When it shows 0, does not populate on the trends, only data integrity of 192 will populate the trends. Any idea what might be causing the data to show a data integrity of 0? The data is good data from the field. Attached is a screenshot of the tag history. Is there a way to show the 0 data integrity on a easy chart?