Interactive Book - Full screen issues

Contents that uses image or video as the background of the content does not occupy the whole area of Interactive Book when in full screen. The issue is more noticeable if there is only one content inside a chapter.

Below is the breakdown of contents with issues:

Agamotto - Does not load correctly in full screen if user did not view it initially in the normal window.
Course Presentation - Does not stretch to occupy all available space
Image Hotspot - Does not load the content in full screen if user did not view it initially in the normal window.
Find the Hotspot - Does not stretch to occupy all available space
Interactive Video - Does not stretch to occupy all available space
Video - Does not stretch to occupy all available space

Test content: https://bv-demo.h5p.com/content/1291188876867624519