Thanks for your inquiry. I have created a new thread here for you to keep discussions separate for effective forum management. Please attach your input Word document and output PDF document (showing the undesired behaviour) here for testing. I will investigate the issue on my side and provide you more information.
While using the latest version of Aspose.Words i.e. 13.5.0, I managed to reproduce this issue on my side. I have logged this issue in our bug tracking system. The issue ID is WORDSNET-8442. Your request has been linked to this issue and you will be notified as soon as it is resolved. Sorry for the inconvenience.