Hi Joe,
Thank you for contacting Syncfusion support.
As mentioned in our previous update, we have inserted a page break before EndGroup merge field in the input template document so that each page has one group. We have shared a sample for your reference which can be downloaded from the following link
The following things has been done in the sample.
1) Loaded an input template document which has above mentioned changes i.e., page break before EndGroup merge field.
2) Performed Mail merge operation
3) Saved and downloaded the resultant Word document.
Please let us know if you have any questions.
Regards,
Dilli babu.