Data comparison not following rolling date

I created a M/M (previous month) comparison and Y/Y (this month last year) in a dashboard in Workspace. However, the comparison date is not following the date of the free form table. I works at the beginning but it stays at the original month it was set up for (ex: if set up this using January as the main month, and did a comparison for previous month - December - when the main date changes to February (the date comparison keeps comparing January to December).Does anybody knows how to do this?

Thank you.