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
    2020-08-02T22:34:14+00:00

    Thanks. I agree with everything you say except "reply of mine is not adding any value". :) To me, your reply has lots of value. I also found things frustrating, but as you did, found alternative methods to accomplish needed tasks, figured out how to use the great parts of PPT and work around some of the surprising glitches. Again, dear moderator, unless some novel idea is proposed to change the current conclusion, the conclusion stated in my previous post, I would like to close the thread on August 6th. Anybody else want to say anything?

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  2. Anonymous
    2020-08-20T08:39:08+00:00

    I am having the same problem.  I noticed that I could eliminate the flicker by re-exporting the mp4 using CyberLink Director.  I simply took the mp4 produced by PPT, imported it into CD, and then exported it as a new mp4.

    This is additional evidence that the output from PPT is flawed.

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  3. Anonymous
    2020-08-27T07:26:14+00:00

    I fully agree with the original poster (Daniel) that this is a very real bug in PowerPoint.

    I am using Office 365 on WIndows 10, and I get a glitch approx once per minute on an export to MP4 or WMV. 

    The glitch is not correlated to any transition or animation...there is nothing special happening during the glitch, it is completely random. Even the timing is random - my glitches occurred at 2:40, 4:19, 5:14 etc.

    My frustration levels are extremely high, and I am very disappointed that Microsoft has not flagged this as a bug.

    Is there anything I can do to get Microsoft to take this problem seriously?

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  4. Anonymous
    2020-08-28T07:49:45+00:00

    Hi Daniel

    I have found a solution that works for me. It was pointed out to me when I was put in contact with a "Windows advisor" after reporting a problem via MS online support system.

    Select File / Info / Optimize Media Compatibility and allow all embedded audio / video files to be "optimized".

    It eliminated all the audio glitches from my exported file (there were at 15 of them in my 12-minute production).

    Regards

    Eddie

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