When I upgraded to the latest version of Survey my calculations did not work. Basically this calculation is base on a number of integer questions (36 integer questions)
Each integer question is a calculation of a product of two previous hidden questions. The multipliers (two of them) are from two previous hidden questions that are retrieved from pulldata.
if I uninstall 2.7 and re-install 2.6.9 the calculation works. The behavior is the same for all the other users of the form.
Below is screenshot from 2.7
Below is screenshot from 2.6.9
Screenshot of the survey in Excel is below white the red box is where the calculate questions are not working.