In designer, the advanced properties on Chart Data binding (Tag History) like Ignore Bad Quality are not properly saved.
Go to designer, create a Chart with some Data, bind the dataset to some Tag History. Check “Ignore Bad Quality” in the advanced section, OK, save project, exit Designer. Lunch the Designer back again, open the binding dialog, the “Ignore Bad Quality” is unchecked.
Ignition version: 7.7.1