Cannot create or edit interactive videos
After installing the H5P plug-in, I've uploaded all libraries to my WordPress site.
I wanted to create a new interactive video.
When I start creating a new video, I insert a title and then select interactive video from the dropdown list.
Then I get the message: Loading semantics, please wait...
But however long I wait, nothing else happens. The little wheel keeps on spinning, but the Interactive Video screen does not appear.
(I re-installed the libraries, but that doesn't help)
Editing Dialog Cards is going fine.
What can be wrong here?