When you’re editing a tile in your Workbook and then flip to the Dashboard view, the tile might look different than you were expecting. This is because any relevant Dashboard filters will be applied to that tile once you’re viewing it on the Dashboard, which may add to or override filters that you applied in your Workbook.
If you’d like to edit the tile exactly as you see it from the Dashboard, you can view it in Dashboard mode, click the 3 dots in the top right of the tile, then hit Explore. That’ll take you to Workbook mode with all of the dashboard filters applied.