Bugs in content types

Im having several 360 degrees pictures in the 360 virtual tour.
When viewing on pc (chrome), there is no problem. All scenes are shown.
but when viewing op mobile phone (android and also Chrome) or tablet (android and also Chrome) some 360 pictures just wont show.
I can move around though, but in a totally black scene. Tried uploading the picture again, but no effect.
It's not that the picture is too large. Other 360 pictures with more mb show up fine.
What to do? 

Hi

Currently, in a multiple choice question, if a person chooses 2 correct answers and 1 incorrect answer, it displays that they got 1 answer right. This is because the program is subtracting a point for getting one answer wrong. I would like it to give the correct answer for how many answers a person got right with no subtractions for wrong answers.

There is this in the wordpress plugin dashboard:

"You got :num out of :total points"

Can this be adjusted here?

Thank you,

Li

Hi

In debug mode I see "Invalid library"

Here is screencast all library is installed. I switch off all plugins.

I update all plugin file through h5p.

The problem is still and happen only when I activate Use H5P Hub.

BR

Krzysztof