Comment by gh1

I am sorry about that. Unfortunately, the same thing happens in Firefox when the tracking protection is set to "strict".

This is apparently happening after Teachable updated their video player. Earlier, they used Wistia. Now they use Hotmart.

I have informed Teachable about this issue. They said they will look into it.

The current workaround would be to use Chrome or Firefox (with tracking protection set to a level below "strict").