This issue occurs in the following scenarios after you filter the data by selecting the range headers:
- Row deletion: Deleting the selected range would delete the hidden rows between this range.
- Fill: Filling data in the selected range would fill even the hidden rows between this range.
- Copy/Paste: Copying and then pasting the range of cells will paste even the hidden rows.
- Formatting: Formatting the selected range would format the hidden rows also.