It's impossible to help without more information. Are you able to post the file as an attachment in this forum thread?
I'll add elaborate on Dan's request a bit so that we can help resolve the issue you are running into.
Having access to your project and puppet can help quite a bit when trying to troubleshoot problems like this. The easiest way to share your project and puppet is to attach the project folder as a zip file to this forum post. You can also link to the zip file using creative cloud file sharing(or something similar like Dropbox). Here’s the simplest way to package up your project for sharing:
File>Copy Media Files into Project Folder
File>Reveal Project in Explorer/Finder>Select the folder in Explorer/Finder
Mac: Ctrl or Right Click>Compress “yourfoldername”