Interactive book getting stuck (can't move to next page)

Interactive book on Wordpress 5.5.1(Optimize Press theme) 
Tried on Chrome + Safari browsers

When the book gets to page 14 the "next" button stops working, the only way to move forward is to refresh the page.

The page has an image and Fill In The Blanks content - I have tried with just an image and just text but have the same issue. Once the page is refreshed, you get taken to the next page and everything works fine. 

Content types: 
BV52's picture

Hi jojoebi,

 In order to give your bug report the best chance of getting answered, please include the following information:

  1. Detailed steps to reproduce the bug: "When the book gets to page 14 the "next" button stops working, the only way to move forward is to refresh the page.

    The page has an image and Fill In The Blanks content - I have tried with just an image and just text but have the same issue. Once the page is refreshed, you get taken to the next page and everything works fine."

  2. Platform and version number. Wordpress 5.5.1(Optimize Press theme) 
  3. Mobile or Desktop
  4. Browser: Tried on Chrome + Safari browsers (version would also help)
  5. H5P plugin version
  6. H5P content type and version (if a content type was used), and a sample URL or attached H5P.
  7. Any browser console errors
  8. Any PHP errors
  9. Screenshots if it's a visual problem

If it worked before:

  1. Any recent changes to the environment (new plugins/modules, updates, configuration changes etc.)
  2. Any recent changes to the browser you're using (new extensions, updates etc.)

The more information you provide, the quicker the community will be able to fix it and the quicker you'll have a working solution!

-BV