In Level 2 Model Building 3.3.12 Activity: Create Product Replenishment UX Page, I should've make a page similar to this prototype:

This is the screenshot of the UX Page that I've made:

If you take a look, 'Planning Period Planning' grid only show us the checked months (Jan and Feb). It used to show all the months, but after I clicked 'Refresh' after unchecking some boxes (Mar to Des) it only shows the months that I've checked. All of the unchecked boxes are gone. Is how is it supposed to look or is it completely wrong?
FYI, here are the formulas for the source of Planning Period Filter

And formulas for the filter that I used to filter the grid under 'Planning Period Filter'

Is there any incorrect formulas or summary methods that I use? please reply to me ASAP, I really need to finish this level 2 this week 😞 . If you need other information from the module, etc let me know.