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yoleditor
yoleditor
Participant
February 10, 2026
Question

adobe premiere elements 2026 removing green screen make it grey

  • February 10, 2026
  • 2 replies
  • 113 views

Product/Version/OS:

  • Adobe Premiere Elements 2026 — Version 26.0.0 (20251104.PRE.65345cd3)

  • macOS Tahoe 26.2

  • Hardware: Macbook Pro M3 Max 


Problem:

I’m trying to key out a green screen clip and replace the background. My green screen footage looks normal and in full color before applying the key. As soon as I apply Ultra Key to the green screen clip and select the green background with the eyedropper, the foreground subject (me) becomes grayscale/grey (looks like desaturated/black-and-white). This happens even if I place a colorful background video underneath.

 

Important: it’s not just a preview issue — the exported video also shows the subject in grayscale.

 

Steps to reproduce:

  1. Import a green screen clip (subject in front of green background). Clip is full color normally.

  2. Place clip on V2. Place any background video/image on V1 (optional; subject still turns gray even without background).

  3. Add Ultra Key to the V2 clip.

  4. Use eyedropper to select the green background as Key Color.

  5. Result: Green background keys out, but the subject becomes grayscale/desaturated.

 

What I checked/tried:

  • Output is set to Composite (not Alpha Channel).

  • Clip Opacity = 100%, Blend Mode = Normal.

  • In Ultra Key → Color Correction: Saturation/Hue/Luminance set to 100 / 0 / 100 (still gray).

  • Changing Matte Generation values (Transparency/Tolerance/Contrast/etc.) doesn’t bring color back.

  • Rendering preview doesn’t fix it.

  • Exporting a short segment confirms the issue persists in the output file (not just monitor preview).

  • Removing Ultra Key returns the subject to full color.

 

Question:

Why would applying Ultra Key desaturate the entire keyed clip (foreground) on macOS, including in exports? Is this a known bug with certain codecs (e.g., HEVC/H.264 from phone/camera), color tags, or Elements settings (Auto Fix / Smart Tone / color management)? Any recommended workaround (transcode to ProRes/H.264 Rec.709, disable Auto Fix, GPU setting, use different key effect)?

      2 replies

      R
      Robert J. Johnston
      Inspiring
      February 11, 2026

      The Ultra Key effect is designed for fast GPU processing, but I can only get the effect to work when I change Project Settings > General > Renderer to Mercury Playback Engine Software Only, the GPU options don’t work. Evidently, our GPU isn’t fully supported with this effect. I’m on a PC Windows 11. 

      yoleditor
      yoleditorAuthor
      Participant
      February 11, 2026

      Finally I started to use videomerge effect instead, it works a lot better, even if I’m a little bit transparent there, but it’ll do the job until I find a better solution.

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