Pivot Table deleting selective data

I have never attempted to use Pivot Tables before this, so maybe what I am trying is out of the realm of what I should be doing but here is the idea: I am attempting to have a different Pivot Table for each month, each pulling from the same data source. This is to keep track of installs on a monthly basis. I made a practice sheet with tab of fake data and a separate tab for the Pivot Tables. Once I first set the filter on each table using the "between" filter and using 6/1/2020 to 6/30/2020 for the label range, it separates the data perfect the way I want. I duplicated the table and repeated the process changing the range for July, June, and September. Everything is looking good at this point so I save it and reopen the whole sheet. I can visually see June and September lose the data while July and August are unaffected. I have tried changing the formatting of my data to a table, this didn't help. I took off auto-refresh data upon sheet opening and that didn't help. Anyone have some ideas for me to try?