Interactive Video

Interactive Video: IFrame flickering in Chrome - Can I disable scrollbar?

We have a problem with Interactive Video contents embedded in IFrames on our platform. The IFrame's scrollbar keeps appearing/dissappearing quickly, so that the embedded video seems to flicker. We observe this in Chrome on different plaforms. I realize that the problem is not necessarily in the H5P elements, but I'm posting my question in this sub-forum anyway, since only the Interactive Video content type seems to be affected.

Interactive Video on Moodle: Uncaught TypeError: Cannot read property 'start' of undefined

When editing course content using H5P, page loading is extremely slow and page fails.

H5P Framework v1.24

Interactive Video (1.22.2) on Moodle (v. 3.10.1)

Desktop

Chrome and Edge

Browser console errors message:

Uncaught TypeError: Cannot read property 'start' of undefined

    at InteractiveVideoEditor.H5P

Pages