Captivate 2019 - problems buffering when playing project

I am experiencing a problem with a project I created in Adobe Captivate 2019. The slides stop advancing after slide 35, but this issue only occurs when viewing the project on mobile devices. When I view the project on a desktop computer, it works fine and does not have this issue. The problem persists across different browsers on mobile devices and is not resolved by clearing the cache. What could be causing this mobile-specific problem, and how can it be addressed?