Hi,
As the problem is being caused by those specific charts from your original VI, it could be due to a corruption in the VI itself. I have found no known issues with charts exhibiting this behavior after calculated values are sent to them. You could, of course, try reproducing the error with a simple VI that performs these calculations and updates the value to newly inserted charts. If this is reproducible, please let me know and we can test out your example VI.
Vivek Nath
National Instruments
Applications Engineer
Machine Vision
