Frozen Video Stimuli and Black Screen

Online experiments
1

URL of experiment:

Description of the problem:

When I start my experiment I run into this screen:

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Which is fine, but then I run into this:

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Which means a participant would have to click the “X” to access the experiment:

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But then the videos in my experiment freeze and do not play (these videos play automatically, this is a discrimination task):

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So my problems are:

  1. The black screen that forces participants to click “X” to access the experiment, and
  2. The videos that are frozen and will not play.
2

Please make your experiment public, we can’t currently see it (Code -> Settings -> General -> Permissions).

What type of movie files are you using? .mp4 files seem to work best.

3

Hey Jonathan,

Thanks for the heads up. The experiment is now public. The movie files are all .mp4.

4

I made a copy and it actually worked fine for me. It might be a browser cache issue. Try clearing your browser cache and piloting it again.