Branching Scenario

Video format not supported in some content types

Hi!

I'm not sure if this is the proper forum for that, but I've encountered a problem using external mp4 video in some content types:

I'm trying to use an externally hosted .mp4 video in branching scenario, course presentation or interactive video. However, I always encounter the error message "video format not supported". The video does work, however, when I add a "video" in the column content type. The video also works just fine when I embed it in normal html5 web pages...

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