[Bug?] Video viewing progress incorrectly measured when playback speed is faster than normal.

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dumdum

05 Haziran 2025 10:12

According to the official documentation:
> Note: Playback speed doesn't affect progress or completeness, so you can watch videos at up to 2x their original speed and still have that video marked as completed.

This seems false. Could you please confirm?

When I play the videos with 2x playback speed, it requires me to view the video multiple times in order to have it marked as completed and subsequently receive 850 Energy Points.

See this video for demonstration.

I'm using Chromium v136.0.7103.113 on Ubuntu 22.04

Yeni gönderi

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JaniceHolz

07 Haziran 2025 18:34
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That's weird. I experimented a couple weeks ago with watching a video on 2x playback speed, and I got the 850 Energy Points after one viewing. I am using Chrome on Windows.
I wonder whether there is something unusual with either Chromium or Ubuntu, and that they did not test that particular combination.
dumdum

09 Haziran 2025 10:15
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JaniceHolz Did you view the video as a YouTube embed or the fallback mp4 video (which I viewed) ?
JaniceHolz

10 Haziran 2025 07:30
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I think I viewed it within the KA website. Is that what you mean by "as a YouTube embed"?

By the way, if you don't get any useful help within a week or so, I would suggest using "Report a Problem" to take it directly to KA staff.
Fernando

11 Temmuz 2025 15:57
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Hi there!

We'd love to have a greater understanding of the issue you're running into while watching our Videos. Could you please submit a support request in our Help Center? Here's the link: http://khan.co/KA-support.

Thank you for being a part of Khan Academy!

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[Bug?] Video viewing progress incorrectly measured when playback speed is faster than normal.

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