Is it possible to "lock" the video speed in Rise

Hi,

I have implemented some videos in Rise, but I would like to avoid my learners to cut corners and just fast forward the videos.

So I have set the toggle to "off" in Video Playback speed - allow learners to control the playback speed of videos in "Themes." 

But it doesn't seem to have any impact. 

When I enter the course in either the preview mode - or via the "share" functionality, I can still control the speed of the video.

Does anyone know if the features does not work - or if there is any other setting that I am not aware of?

I have also tried exporting the course and importing into an LMS - but with the same result.

I hope someone can help me out - thanks in advance.

/Jasper