PowerPoint 2016 exported mp4 video "jerks" on some slide transitions

Anonymous
2020-04-15T05:43:13+00:00

I am using PowerPoint 2016 - Windows 7. When I export to an mp4 video, I notice that at some slide transitions the video "jerks" (quickly flashes back and forth from previous slide). I am at a total loss as to why. I'm hoping this is something I am doing wrong and someone can help figure out how to prevent this from happening.

https://www.youtube.com/watch?v=d2IYaXmGHRc - video file exported from ppt and imported into youtube

Link to youtube video showing behavior

where it jerks: 55 seconds, 1:45, and 2:36

The same behavior occurs in original mp4 file exported from ppt. If you download the mp4 file and run in Windows Media Player you will see the glitches at the time points. For some reason, when I just run the mp4 in a browser, the jerks do not show up, I guess are "smoothed over" by whatever video player the browser is using.

https://www.ehdp.com/out/ppt\_light\_bg\_alternatives\_\_\_\_\_\_\_.mp4 - video exported from ppt

Link to mp4 file showing behavior

You will notice there is kind of a pattern. Approximately 50 seconds between the glitches. I have noticed a more or less similar pattern, approximately one minute between the glitches, in some other tests I have done.

https://www.ehdp.com/out/ppt\_light\_bg\_alternatives\_\_\_\_\_\_\_.pptx - the powerpoint file

PowerPoint File 

I also see this happen when I remove the slide timings and set the mp4 video export to advance slides every 5 seconds. In that case, the jerks happen exactly at 1 minute and 2 minutes.

The transition "jerk" never happens when I run a slideshow from within PPT. Only happens in exported mp4 video.

Slide transitions set to "none".

Any help appreciated. Please let me know if additional information needed.

If a bug in ppt, any suggested workaround?

Daniel

Microsoft 365 and Office | PowerPoint | For home | Windows

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

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Anonymous
2020-12-02T19:01:27+00:00

I too have this issue. The exported MP4 from O365 PP 2016 is experiencing the same "glitch" on transitions. After the transition completes, the previous slide pops up, sometimes the entire slide, sometimes only parts of it.

I've been using PP for this purpose for many years and never had this issue, even with Win 10 x64 and O365 2016 until recently. I'm suspecting it has something to do with one or more of the updates pushed out by Microsoft. (remember the debacle where the Win 10 update 1809 would delete your user profiles if you didn't store them in a "traditional" location?)

Anyway, in October this was working fine for me (we are a corporate entity that updates much slower than public users).

I've had to resort to two rounds of encoding making the process more lengthy.

Length of video is irrelevant unless of course it's shorter than the 55 seconds (yes mine also initially happens at 55 seconds go figure)

I am a software engineer and I can tell you that this is most definitely an encoding problem. It is NOT a player problem ... I suspect that the encoding is screwed up and some players more readily ignore them. But what do I know, I only design and write software for a living.

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  1. Anonymous
    2020-08-28T16:10:50+00:00

    Thanks. I'm glad you found a solution. However, I would point out you are using different PPT and OS versions - Office 365 on Windows 10 - so does not really apply to the original question. Similarly, while I have also encountered audio glitches on exporting to video, the original post was about a visual effect - the "jerks" on some slide transitions. I tried to apply your solution, but unfortunately, PPT 2016 menu system does not have "File / Info / Optimize Media Compatibility" option. I looked pretty carefully. But if I am missing it and someone else sees the menu option on PPT 2016, let me know.  As previously detailed, I found alternative methods to accomplish needed tasks, figured out how to use the great parts of PPT and work around the frustrating glitches. I am reluctant to click on "Mark as Answer", because no answer so far to the original issue. Again, dear moderator, I would like to close the thread. Thanks

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  2. Anonymous
    2020-09-23T06:09:09+00:00

    Hi I have the SAME PROBLEM going through hell just to export video.  Did you find the solution ? what is it .

    PLEASE REPLY

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  3. Anonymous
    2020-09-23T16:05:06+00:00

    Thanks for verifying the problem with exporting video from PPT. However, I'm afraid you will have to read through the previous posts. All the information, such as it is, can be found there. I am not going to repeat the details. There is no real solution, except to use external screen recorder to record slideshow. Again, dear moderator, could you please close this thread? Thanks

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  4. Anonymous
    2020-10-24T12:22:57+00:00

    Hi guys,

    I had the same problem, and I confirm that the video plays ok with others softwares than VLC.

    I worked on that mp4 video file even with video editing softwares such as lightworks or shotcut and there is no evidence of those flashing frames.

    I am not an expert of this matter, but I guess there must be some kind of hiccup between powerpoint and VLC.

    I know this does not fix the issue highlighted here.

    Regards to all

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