Bugs in content types

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. 

I am working with H5P in Moodle version 3.8. When I make a question set with an essay question, when I test it, there seems to be no "Finish" button, so the work cannot be submitted. Any ideas?

Hello, 

I am designing and developing a course for students to use Image Hotspots. Though prior students have used it, (the latest I know of is June 2020), I do not see it any longer in the new content options. Has it been removed? 

These are the pages I am trying to access it from – yes, I logged in.

These are the two links used from the prior course:

Login-

https://h5p.org/

Test site-

https://h5p.org/node/add/h5p-content