Bugs in content types

Hello!!

I'm using H5P contents under the WPLMS theme on WordPress. Hereafter developing and testing things with the theme and all the available features I decided to create a platform where the content created on H5P will be used as the activities that'll determine the evaluation of the user based on the performance respectively. So I think you may be aware of the feature where WPLMS provides the opportunity to create quizzes solely based on H5P content named "H5P quiz" where after the submission of the quiz the activity is evaluated. 

Hello guys! 

Since this is my fist time to leave a message, I wanted to use this opportunity to thank you for a grat job you're doing here! 

Now, I wanted to ask if there's a solution for issue our users are facing with on active surfaces. I've tried all browsers on iOS and Android platforms, and the issue is present everywhere.

This is the video I've made after we had a couple of complains and I can't find the right solution for it.

https://streamable.com/kcxpjf

There's a glitch in a interactive video where, if the video is viewed in smaller screen size phone (For ex: Iphone SE) , the "full screen" button dissapears.

For example when I view this H5P content emebedded in WordPress on Iphone SE (both using Chrome and Safari):

https://blogs.ubc.ca/riesandbox/107-2/