Bugs in content types

Hi there, I wonder if you can reproduce the following problem and if other people have already experienced this issue. So there is a fill in the blank test and in one fill-in-the blank exercise there are more than 25 blanks. There is immediate feedback set up. Everything goes fine until the very last item and when I would like to finish the whole exercise the page informs me that something happened, either in an error message popup or there is a white blank page and it reloads the whole page. When there are 10 or 15 blanks in another exercise this error does not occur.

Hello, I think, I found a bug.

If I want to embed a presentation I can download the embed-code. But there ist the resizer.js included, too.

Example from my presentation:

I am not sure if this is a bug or not.

 have a background video that is stored on Vimeo and a H5P interactive video project that contains hotspots. When a hotspot is clicked that is linked to another time in the video some of the intermittent screens are displayed before the actual target is displayed.

What is causing this effect? Is there a setting that might prevent this?