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fordprefect0
Participant
October 20, 2019
Question

Playback and renders are extremely "glitchy"

  • October 20, 2019
  • 1 reply
  • 382 views

Hi, posting here as I'm desperate and I've tried twice on different days getting a hold of Adobe directly but gave up after over an hour of waiting each time.

 

I'm trying to edit a small minute and a half video for a helicopter company. But in my timeline, when I play the footage back it looks like there's a glitch effect on the footage. There's small areas or sometimes half the frame seems to shift to the left or right. Sometimes the clip seems to go backwards 1 frame and then 2 frames forwards. Sometimes the entire frame jumps all the way up and then back down. I have noticed the following:

 

- Firstly this is not present in any way in the raw files.

- This occurs both with clips in the timeline and if I preview them from the imported files panel.

- For some reason most clips are fine, but if I try to stabilize them the bug always happens. However:

   - The bug occurs occasionally on clips that have never been stabilized, but have been sped up or slowed down

   - If I remove the stabilizer, even though the clip goes back to normal the glitches are still there

   - If I delete all the render files and re-render the glitches remain

   - It isn't a playback issue as I can step frame by frame over the clips and see the jumps, but if I linger on the frame it will correct itself. However, next time I go over that frame the issue is back, until I let it linger.

   - The glitches are always in the same spot and look the same.

 

I was hoping this was just an issue in the editor, but the glitches are present (but to a lesser degree) if I export the file. I have tried the following to troubleshoot:

 

- I checked the premiere and my graphics cards are both up to date. They are.

- I tried turning off GPU acceleration, but the glitches still occur.

- I tried several times deleting all the render files and re-rendering

- closing and re-opening the program

- resetting my entire computer

- I didn't reset my preferences as I am using a brand new computer on a fresh install of premiere pro. I simply moved my panels the way I like them and started working on this project which was not imported from another computer.

 

My computer is a 2019 razer laptop running Windows 10 1903 build 18362.418. Premiere Pro is 13.1.15 and creative cloud doesn't show any new updates. My graphics card is the geforce RTX 2060.

 

I have no idea what to do, and I can't get a hold of Adobe support. It's absolutely mind boggling to me that Adobe can charge so much money for their software, it's always riddled with bugs, and their support is horrendus. If you can actually get a hold of someone, they usually just tell you to reset your preferences and move on. Once, 1 installed faulty display drivers on my computer thru remote access then left me to fix it myself. It feels like every time I start a new project with Premiere I have to do battle with some ridiculous bug like this and spend hours trying to get a hold of some support.

 

Anyone who can help would be greatly appreciated.

This topic has been closed for replies.

1 reply

R Neil Haugen
R Neil Haugen
Legend
October 20, 2019

That sounds like there's some corrupted bits perhaps in the sequence data file. Or ... not. So trouble-shooting 101. And the following questions are not looking to blame something, just data needed to  be able to troubleshoot as quickly as is possible.

 

The media is what perzactly ... format/codec, frame-size/rate ... ?

 

What camera was used?

 

Where is the media living on the computer's drive/s ... including the type and connection? How many drives are involved in the project?

 

How was the media brought into Premiere ... drag/drop from Explorer, or ingested from the Project or Media Browser panels of Premiere?

 

You mention using Warp ... are you finishing your Warp settings, then render/replace those clips in the project with the new files? This is a vastly better process than just setting a bunch of clips to Warp and leaving Premiere to reprocess continually.

 

Are you using any time changes?

 

Have you tried going into a "pancake" editing mode, with two timeline panels stacked ... create a new sequence with the same sequence settings, then select all the clips and copy them to the new sequence?

 

Or create a new project, and from the Media Browser panel in that project, navigate to and select the old project, and import the sequence?

 

Neil

 

 

Everyone's mileage always varies ...
F
fordprefect0Author
Participant
October 21, 2019

>the following questions are not looking to blame something, just data needed to  be able to troubleshoot as quickly as is possible.

 

Completely understand. Thanks for responding so quick.

 

>The media is what perzactly ... format/codec, frame-size/rate ... ?

 

Files are mp4s shot on a Sony A7ii. 1080p, 60fps. The camera is set to XAVC S using a CINE2 profile. Lmk if there's other info I can supply here.

 

>Where is the media living on the computer's drive/s ... including the type and connection? How many drives are involved in the project?

 

The project files and project itself live on a secondary harddrive connected via SATA3. The razer 2019 base model has a slot inside for a 2nd drive. This is the only drive involved unless premiere is using something I'm unaware of on the C drive which is a SSD that came with the laptop. 

 

>How was the media brought into Premiere?

 

Imported via right click in the media panel and used import folder to auto import everything with the folder structure I like on my drive.

 

>You mention using Warp ... are you finishing your Warp settings, then render/replace those clips in the project with the new files? This is a vastly better process than just setting a bunch of clips to Warp and leaving Premiere to reprocess continually.

 

Can you clarify how this works? I have always just applied the stabilizer to clips and had no issues but if there's a better way I'd like to do it even if this isn't the cause of the issue.

 

>Are you using any time changes?

 

Like changing the speed of the clips? There's several places I cut the speed by a bit less than half. I shoot at 60fps and export at 29.97 so it still looks good.

 

>Have you tried going into a "pancake" editing mode, with two timeline panels stacked ... create a new sequence with the same sequence settings, then select all the clips and copy them to the new sequence? Or create a new project, and from the Media Browser panel in that project, navigate to and select the old project, and import the sequence?

 

I tried the new project and it didn't work, it created new glitches that were in different places but behaved the same way as previously described. I then tried the new sequence idea, and at first it worked! but then as I was scrubbing through I noticed they started up again. They didn't happen right away, it's almost like during playback the skips happened and got recorded to the render file. That's probably not what's actually happening, but that's the best way to describe how it feels to watch them form. As it's playing, the skips/glitches occur where they weren't before, then they stay there after the fact.

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