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alyssa_1888
Participant
July 18, 2025
Question

black vertical lines appearing both in editing and export

  • July 18, 2025
  • 1 reply
  • 319 views

Hi all, this is my first time posting here so please bear with me if this is too much info or seen as a simple problem. It's not simple for me as I've spent over 2 hours trying to solve it 😞 

 

I'm making a 15s slideshow only using photos that are all under 12 MB each for an IG story (1080x1920). The black vertical lines begin on the third photo/at 8 seconds. There's no reason I can think of that explains why I'm having this many playback issues with a project this small. I've gone through all related posts and tried multiple solutions, listed below. Nothing works. After I replace the "footage", the lines will temporarily disappear even though I didn't render again yet and the bar above the clip is red. But once I render the sequence they appear again after all bars above clips are green/rendered.

 

What I've tried so far:

  • Replacing the problem "footage" (photo in this instance) multiple times
  • changing from CUDA to Software Only Rendering based on advice from this post (OpenCL isn't showing up as an option for me)
  • deleting my cached files
  • removing all effects/attributes and reapplied them multiple times
  • using Media Encoder to render and export as well as exporting straight from Premiere...same issue each time
  • switched the order of the clip in the sequence
  • exported at different bitrates (high, medium, low)...same issues

 

Macbook Pro details in photo attached. Currently running Premiere Pro 25.3. My company's IT team even wiped and reset my Macbook to try and solve this....so this clearly must be an issue with Premiere Pro since I STILL have this problem. PLEASE HELP!!!!

 

1 reply

S
Community Manager
Sumeet_Kumar_ChoubeyCommunity Manager
Community Manager
July 18, 2025

Hi alyssa_1888,

Welcome to the community! Sorry to hear you're having trouble. Could you please confirm if the issue is happening with any specific image file? If so, have you tried resaving that image as a new JPEG file from Photoshop or from the Preview app on Mac to see if the new file is working properly? Also, what effects have been applied to the affected clip in the timeline?

Thanks,

Sumeet

A
alyssa_1888Author
Participant
July 22, 2025

@Sumeet Kumar Choubey Unfortunately it's happening randomly to any kind of image file.

 

I should have clarified in my post above that I've had this issue happen to previous premiere projects before, using completely different and unrelated photos. Premiere will work fine while I'm creating a squence, and then it'll be fine for the first couple of times I render in to out, but as I keep working on the file and keep needing to render so it works faster/I can review my progress, it then begins to add the vertical black lines to random clips in my timeline. 

 

I tried saving the specific image in a different format like you suggested, and unfortunately I have the same issue. The only way I've been able to "fix" this issue in the past is rebuilding the project from scratch in a completely new file. It's awful.

Peru Bob
Community Expert
Peru BobCommunity Expert
Community Expert
July 22, 2025
quote

The only way I've been able to "fix" this issue in the past is rebuilding the project from scratch in a completely new file.


By @alyssa_1888

 

Instead, try creating a new project and import the old one into it.

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