Please compress the following resources into ZIP format and attach the .zip file here for testing:
A simplified template Word document
JSON file containing the simplified data
Aspose.Words generated output DOCX file showing the undesired behavior
Please also create a standalone simplified Console Application (source code without compilation errors) that helps us to reproduce this problem on our end and attach it here for testing. Please do not include DLL files in it to reduce the file size.
As soon as you get these pieces of information ready, we will then start further investigation into your particular issue and provide you more information.