Bugs in content types

Hi,

I'm getting an error message across all my Course Presentation videos saying 'video format not supported' - HOWEVER - all videos are MP4 format.

I've attached images so you can view the problem.

Can anyone help?!

Thanks

We have a course presentation which seems to be corrupted? https://h5p.org/node/409015
In Slide 20 there are interactions where you get stuck.
Also in Edit mode there is no possibility to see all slides or to edit.

Please note that we use this exercise in a Moodle environment where we do some custom H5P styling.
It might show fonts that are too big.

We hope that you can find something in the underlaying source of the files?

Version Course Presentation is 1.19.3

When creating dialog cards, you can choose how you want the text to align, but when I view the text always aligns as 'center'.