You've created a custom page in your CMA and made edits but when you generate the PDF version, the edits are not reflecting.
Since a PDF is a static document, it does not update live like the web version does. The PDF will remain the same way it was when the custom page was first created and saved in your presentation. To resolve this issue, follow the instructions below:
1. Access the page in question in the page library and select the pencil icon to edit
2. In the upper right corner, there should be three dots. Select this icon, and then select "copy to print version" and select Save.