I have a similar problem. I thought my report was working, but I find it stores the old data. My table data timestamp updates, but the old data stays on the report. For example tag1 = 100 and tag2 = 200. Data and time displays properly. Data changes tag1 = 500 and tag2 = 200, data and time displays correctly. Data changes tag1 = 100, tag2 = 200 data displays tag1 as 500, tag2 as 200 and the correct time. If tag2 data changes the report will update to the new tag2 data and the correct time, but still has 500 for tag1 even though tag1 has returned to its original value of 100.