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Merry_probleme7b4
Participant
Sep 28, 2026 5:43 PM UTC
Needs More Info

Scale and Transform keyframes change values but do not affect the image on Mac Apple Silicon

Issue:
Premiere Pro is not applying Scale/Position keyframes visually to a slowed-down video clip. The numeric values animate correctly in Effect Controls, but the image in the Program Monitor does not change at all.

This prevents me from doing basic manual zooms/punch-ins on a clip.

Steps to reproduce:
1. Create a new sequence.
2. Add a single video clip to the timeline.
3. Cut the clip and change its speed to [SLOW SPEED, e.g. 40%].
4. Time Interpolation is set to Frame Sampling.
5. Select the clip and enable keyframes for Motion > Scale.
6. Set a Scale keyframe at the beginning (for example, 100).
7. Move forward in the timeline and change Scale to another value (for example, 115).
8. Play or scrub through the keyframes.

Expected result:
The image should smoothly zoom from Scale 100 to Scale 115.

Actual result:
The Scale value visibly changes and the keyframes are present, but the image does not zoom or change in the Program Monitor.

Troubleshooting already performed:
- Created a brand-new sequence with only this one clip.
- Tested both Motion > Scale and the Transform video effect.
- Changed Time Interpolation settings.
- Reset Premiere Pro preferences at launch using the Reset Options dialog.
- Restarted Premiere Pro.
- The issue persists.
- Nesting the clip/sequence makes the animation work, but nesting is not an acceptable workflow because it can affect image quality and adds unnecessary complexity.

System information:
Premiere Pro version: [VERSION]
macOS version: [VERSION]
Mac model/chip: MacBook Pro with Apple M2
Source media: [CAMERA / CODEC / RESOLUTION / FRAME RATE]
Sequence settings: [RESOLUTION / FRAME RATE]

Screen recording attached.

Please confirm whether this is a known issue on Apple Silicon / Metal rendering, whether there is a workaround that does not require nesting, and whether a fix is in progress.

      8 replies

      artistic_fighter2479
      Participant
      Oct 2, 2026 12:36 PM UTC

      ​@Jonathan Editor 
      I am facing similar issue since i was not able to report bug using this portal feature as blank page showed up , I wasted a lot of time just to reach adobe support

      PLease help 

       

      Issue:

      Premiere Pro is intermittently not applying keyframe changes correctly to the visual output. The keyframe stopwatch is enabled and blue, multiple keyframes are present, and the numeric property values change correctly in Effect Controls, but the Program Monitor does not consistently follow the keyframe interpolation.

      I have experienced this with Motion > Scale, Motion > Position, and Directional Blur > Blur Length.

      For example, when animating Directional Blur, the Blur Length value changes correctly between keyframes in Effect Controls, but the blur can effectively be applied to the entire clip instead of changing according to the keyframes.

      This makes keyframe-based editing unreliable.

      Steps to reproduce:

      1. Create a new Premiere Pro sequence.
      2. Add a video clip to the timeline.
      3. Select the clip and apply Directional Blur.
      4. Enable the stopwatch for Directional Blur > Blur Length.
      5. Set Blur Length to 0 at the beginning of the clip.
      6. Move the playhead forward and set Blur Length to 100.
      7. Move further forward and set Blur Length back to 0.
      8. Scrub through or play the clip across the keyframes.
      9. Observe the Effect Controls panel and Program Monitor simultaneously.

      Expected result:

      The Blur Length should smoothly interpolate between the keyframes:

      0 → 100 → 0

      The Program Monitor should show the blur increasing and then decreasing according to the keyframes.

      Actual result:

      The keyframe stopwatch remains enabled/blue and the keyframes are visible.

      The numeric Blur Length value changes correctly in Effect Controls when moving between the keyframes, but the actual visual result does not consistently follow the keyframes.

      In some cases, one Blur Length value is effectively applied to the entire clip instead of being interpolated between the keyframes.

      I have experienced the same type of behavior previously with Motion > Scale and Motion > Position, where the values and keyframes change in Effect Controls but the actual image does not respond accordingly.

      Screen recording:

      Screen recording attached showing the keyframes, changing Effect Controls values, and the corresponding behavior in the Program Monitor.

      Adobe Premiere Pro version:

      Premiere Pro 26.5.1 (Build 1)

      Operating system:

      Windows 11

      GPU driver version:

      [ADD YOUR NVIDIA DRIVER VERSION]

      GPU: NVIDIA GeForce GTX 1650 (4 GB)
      Additional GPU: Intel Iris Xe Graphics

      Video format:

      4k 60 fps

       

       

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        Community Manager
        Jonathan EditorCommunity Manager
        Community Manager
        Oct 2, 2026 1:53 PM UTC

        Hi ​@artistic_fighter2479,

        Welcome to the Premiere forums! Thank you for your reporting this and sharing a screen record.

        As the team investigates, could you tell us a few more details that can help us understand your editing environment:

        • Does it affect all projects or only some?
        • Does it affect new, empty projects?
        • When did the problem first begin?
          • What the last version of Premiere this key frame task was working as expected on your system?
          • Was anything recently updated in your system?
            • Including any third-party panels, or plug-ins?
        • Does the issue persist in Premiere 26.5.2? 
        • What is the footage source? (Include camera type, specs, codecs, etc. )
        • What are your sequence settings?

        Best,

        Jonathan

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        artistic_fighter2479
        Participant
        Oct 3, 2026 7:48 PM UTC
        • Does it affect all projects or only some? Yes it affect every project but i have observed when sequence it doesnt happen for a while and start happening and sometimes it works well for few minutes and again automatically get back to initial position.
        • Does it affect new, empty projects? Happens for all another project had the same issue with another project but sometime creating new sequence works well
        • When did the problem first begin?  think 3-4 years back i used premiere pro and then now i am using it and it doesnt work well now
          • Was anything recently updated in your system? I uograded ram to 16 GB and did reset laptop before using adobe
          • Including any third-party panels, or plug-ins? No


            Does the issue persist in Premiere 26.5.2? I havent checked it yet 
          • What is the footage source? Samsung S24 ultra
          • What are your sequence settings? 69 fps frame rate and everything default
        Translate
        Community Manager
        Jonathan EditorCommunity Manager
        Community Manager
        Sep 28, 2026 6:20 PM UTC

        Hi ​@Merry_probleme7b4,

        Welcome to the Premiere forums. Thank you for reporting this occurrence and providing detailed information. For the team to try to better assist you, we’ll need more detail:

        • What is the exact Premiere version you’re using?
        • Please specify what OS is currently installed on your MacBook Pro M2?
        • What video format is your footage?  (Resolution, codec, frame rate, camera used, etc.)
          • This information will help the team in trying to reproduce the issue.
        • Were proxies made of the footage?
        • What is the sequence settings? (Frame rate, resolution)
        • Does the issue persist when the Program Monitor Panel is set to Full resolution?
        • Would be possible to re-upload the screen record? It does not appear to be attached to the post.

        For additional context:

        • Does it affect all projects or only some?
        • Does it affect new, empty projects?
        • When did the problem first begin?
          • Was anything recently updated in your system?
          • Did it ever work as expected on your system?

        Sorry for the frustration. Hope we can help soon.

        Best,

        Jonathan

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