How to resolve this improper filtering?

I have the following relationship diagram (link). The 2 non-date tables are linked by key (it's a region key) the left table is sales where every sale has a region key, and the right table is related to covid (which also has a key). When I do not filter, everything is fine. It show my sales from January 2020 to today and covid cases starting March to today. However when I filter for example on state, the only sales that are shown are from the day the covid cases started so start from March. 

My goal is thus to have the filtering work but not that it only shows the date from March to April, but from January (starting date of sales) to April.