Bugs in content types

We recently moved to moodle 4.5.4
using H5P editor we created content uploaded via activity for a course it moodle/.

It works on the laptop (both windows and  mac)
it works on android

However opening the page in an iPhone resulted video not supported. error. We have checked that the source video can be played in an iphome. Is there any solution to this error?

When our developers create H5P assets in H5P.com, the action button for the very same instance of an H5P asset will show the word Submit when viewed or previewed in H5P.com, but when added to our LMS (D2L Brightspace), it will show Check.

No text customizations are being applied manually, and based on what developers are reporting, it isn't always consistent; perhaps even within the same embedded instance of an asset.

Is there a way to make this consistent?

Here are two screenshots of the same asset; one in H5P (Submit), the other in D2L (Check). (Attached.)

Hello,

I am using the text and image content type to create content in Drupal. However, when I try to view the content on the front end, nothing is displayed.

Here is the content that is causing issues: https://h5pstudio.ecampusontario.ca/content/69880.

I am using Drupal version 10.

Upon checking my browser console, I encountered the following JavaScript errors:

and