URGENT! Subtitle Blinking on a MP4 file

Feb 01, 2019

Hi,

I created a Storyline file which contains a video and added subtitle using Add Captions. Then, I published it as a MP4 video with SD resolution. The video duration is 06.41 minutes. The Storyline is also the latest updated one 3.24.17733

However, when I play the video through Windows Media Player, the sub title starts blinking / flickering very often that it is not possible to read the sub title at all.

I am attaching both the Storyline file as well as Mp4 file for your reference.

Please let me know how can this be resolved.

23 Replies
iGTB Training

Hi,

Thanks for your reply. I also understand that a feature request has been created for the same. I am not sure why it is a feature request. The feature already exists, it is only that the feature is not functioning properly. I hope there is some technical fault in the feature.

Also, I did create one file before which was working fine. I am attaching the same for your reference. Not sure, what went wrong the next time. Any help regarding this would be greatly appreciated.

Alyssa Gomez

Hi iGTB Training!

Hmm, this is certainly a puzzle. Technically closed captions shouldn't appear when you publish Storyline 360 content to video, according to this article.

Can you confirm that you followed these steps to publish your content to a MP4 video file? 

  1. Go to the Home tab on the Storyline ribbon and click Publish.
  2. When the Publish window appears, select the Video tab on the left side of the window.

iGTB Training

Hi,

Yes. I did the same. I am also attaching few more files. One created without trigger and another created with trigger. When it is created without trigger, the subtitle does not appear in mp4 output file. However, when it is created with trigger, the subtitle appears but blinks frequently.

I have attached the Storyline file, published mp4 file and the video of steps taken by me. All these files are attached for both "Without trigger" and "With trigger" scenarios.

Any help would be greatly appreciated. I am also parallely interacting with Customer Support team (Case #01682731). 

Hope I get a quick resolution!

Lauren Connelly

Hi Yogesh!

Thanks for checking in! We are still seeing blinking with mp4 files and closed captioning. We are still tracking customer impact so we haven't released a fix yet. 

However, we did find the culprit! Using a trigger to enable closed captioning on a video causes the captions to blink. If at all possible, we recommend not using a trigger to enable closed captioning.

In the meantime, if I hear of any workarounds, I'll make sure to share them in this discussion.

JJ Wallenius

Hi Lauren,

Is there another option to display closed captions when published to a video other than using the Player.ShowCaptions built-in variable? I didn't use a trigger; I simply set the variable default to true, but the CCs are still blinking/flashing. My goal is to publish to video with CCs turned on so they'll automatically display in Windows Media Player. Basically they'll be forced on without an option to turn off.

Thanks.

Jeff Gehlert

Hello,

Have there been any updates or solutions to this flickering issue? I'm experiencing the same problem when I trigger the captions to display when timeline starts. Captions appear in the exported video but with the distracting flickering. Have about a dozen videos that need to be exported.

Thanks

Leslie McKerchie

Hello Jeff and welcome to E-Learning Heroes. 😊

Thank you for reaching out and sharing what you are experiencing with your closed captions.

This is still an open issue with our team, so I do not have an update to share at this time, but I've attached this conversation as we continue to track user impact and so that we can share updates with you here.

Leslie McKerchie

Hello everyone,

I wanted to update this discussion to share that we no longer see this issue where closed captions are blinking in a published video when using the latest version of Storyline 360, Build 3.61.27106.0.

If you or others are experiencing any additional issues using the latest update, please contact our support team directly.