actuals this period after using store pd performance

I having an issue where with actual this period units and costs after using store period performance. The value will initially reset to zero for all resources(which is what I want) but, when I close the schedule and re-open it I am seeing on some resources that the actuals this period costs have values with actual this period units at zero. I also noticed that this unwanted behaviour of P5 also affect the actual to date costs. I have checked all my settings and I am pretty sure that I have not selected any settings in P5 that will auto-calculate the actuals for me.

Does anyone in here experiencing the same issue with P5? Any recommendation for P5 settings (user, project, apply actuals, resources) that I need to follow; or any procedure that I need to do when updating the schedule.

It’s been a few years back but I can recall that P3 has an issue with the actual this period even after you used store period performance and it is visible when you export it in excel. The actual this period units data in excel are not really set to zero but with a data like 0.000012353 (as an example). The way to get around it in P3 was to use global change or to import after implementing store period performance to really reset the actual this period values to zero. I have not tried these in P5.

Thanks in advance for all the help.