This is a problem which can happen when making modifications to grouped sheets. In the example below I have tried to make sheet show only one Moisture content test per sheet. I reset the data and ref cells for the other columns incorrectly. This example should be showing three test sheets but its only showing one and presenting the data for the first only.
When I have run the test, I wanted to get three sheets but I only get one. This is because I have not reset the groups correctly.
If you make any changes to the grouped sheet. its very important to make sure that you reset the group before making the changes. To reset the groups go the sheet in the sheet designer. Then go to the grouping drop down and click reset. depending on the size of the sheet this may take a minute