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Sam Leinen
Participant
August 14, 2025

Glitched thumbnails for markers and search panel after 25.4 update

  • August 14, 2025
  • 14 replies
  • 479 views

Running an M3 Max Macbook Pro running Sequoia 15.5 with an external monitor as well as a Blackmagic Ultrastudio Extreme playing out to a monitor.

 

After updating to Premiere 25.4 now all thumbnails in the markers panel as well as the search panel are glitched/distorted. Was working fine prior to update. When scrubbing over shots in the search panel hover scrub works fine but then goes back to the glitched image when moving off of it.

 

Have tried wiping cache, made new markers.

 

When viewing a bin in icon or freeform view the thumbnails are fine. This is limited to the markers and search panels.

    14 replies

    H
    HoehneDesign
    Participating Frequently
    April 20, 2026

    The thumbnails in the clip gallery are just noise... the clips are not show correctly and are unusable.

     

    jamieclarke
    Community Manager
    jamieclarkeCommunity Manager
    Community Manager
    April 20, 2026

    Hi ​@HoehneDesign - We haven’t been able to reproduce this issue, but see it off and on.  Would you be able to provide additional information on your system specs and if you have any third party plugins or panels installed?  When did this happen.  Any information you can provide would be helpful.  Thank You!

    RogerAtCat
    RogerAtCat
    Known Participant
    September 18, 2025

    25.5 (build 13) fixed the issue for me. I am no longer glitching thumbnails in the search window.

      S
      Sam LeinenAuthor
      Participant
      August 23, 2025

      Only works on the Macbook Pro screen with no external monitor connected. Makes no difference if it's dragged over there.

      D
      Community Manager
      Dani_V.Community Manager
      Community Manager
      August 22, 2025

      Follow-up question @Sam Leinen: Does dragging the Search or Markers panel into the MacBook Pro built-in display fix the thumbnails if you are still connected to the external monitors, or do the thumbnails only work in the built-in display when the external monitors are completely disconnected?

      D
      Community Manager
      Dani_V.Community Manager
      Community Manager
      August 19, 2025

      Thanks for testing that out @Sam Leinen and @RogerAtCat.

      No worries @Rex Lint, Mercury Transmit let's you play back video and audio on external devices under Preferences > Playback. Do you see the thumbnail issue happening across your three monitors? What macOS version are you on? And just double-checking, you have no Blackmagic devices or connections?

      RogerAtCat
      RogerAtCat
      Known Participant
      August 19, 2025

      I disabled mercury transmit and it is still happening. Same style glitches.

      RogerAtCat
      RogerAtCat
      Known Participant
      August 19, 2025

      Interesting that it doesn't happen on the built-in MacBook screen but does when a monitor is connected. I have no choice since I'm on a Mac Studio and I should note that I do not have the Studio Displays. 

      R
      Rex Lint
      Participant
      August 18, 2025

      Roger

       

      I am on a M2 Ulra Mac Studio.  Sorry for my ignorance but I don't know what "transmit" is, so I don't think I'm using it.  I have 3 monitors hooked in, 2 of them USBc, one is an HDMI monitor. 

       

      S
      Sam LeinenAuthor
      Participant
      August 18, 2025

      Apologies on the slow reply, on a project with a tight turnaround.

       

      These are all HD ProRes LT transcodes from Arri Alexa 35 files.

       

      I tested:

      • Blackmagic made no difference whether it is connected or not
      • Using built in display only does fix it! But that doesn't really help in the immediate... more productive with the second monitor than I would be with marker thumbnails :).
      D
      Community Manager
      Dani_V.Community Manager
      Community Manager
      August 18, 2025

      Hi @RogerAtCat thank you for providing information. Is this behavior observed if external playback or transmit is disabled?

      @Rex Lint, could you provide more details on the set-up you have and are you also using transmit?

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