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Sam Leinen
Participating Frequently
Aug 14, 2025 8:50 PM UTC
Needs More Info

Glitched thumbnails for markers and search panel after 25.4 update

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.

    30 replies

    Sam LeinenAuthor
    Participating Frequently
    May 19, 2026 2:43 AM UTC

    This continues to be an issue for me. External non-Apple displays with my Macbook Pro M3 Max. Seeing it in the marker and search panel. Premiere 26.2.2 Build 3, Tahoe 26.4.

     

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    DAN223322625vvm
    Participant
    May 18, 2026 2:00 PM UTC

    M3 Ultra Mac Studio - Tahoe 26.4.1 (3 monitors: Samsung 3840x2160, Asus ProArt 3200x

    1800, Acer 1920x1080) They’re getting their feed through different USB hubs) 
    Thumbnails created long time ago are corrupted. New ones; One is ok the other one no (Those labelled “Texted”).
    Premiere 26.2.0 (Build 65)

    I just noticed. The thumnails can be fine. I close the project re-open… All corrupted!

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    Cartel Vault
    Cartel Vault
    Participating Frequently
    May 8, 2026 5:11 PM UTC

    Still having this issue in premiere 26.2.2

     

    Hardware Overview:

     

      Model Name: Mac Studio

      Model Identifier: Mac14,13

      Model Number: Z17Z000MJLL/A

      Chip: Apple M2 Max

      Total Number of Cores: 12 (8 performance and 4 efficiency)

      Memory: 64 GB

      System Firmware Version: 11881.140.96

      OS Loader Version: 11881.140.96

      Serial Number (system): PR90C30P4Y

      Hardware UUID: 98038B6B-EF30-58DB-92B6-428A6A8EC392

      Provisioning UDID: 00006021-001448E13447401E

      Activation Lock Status: Disabled

     

     

    Seems like all sequence thumbnails and some clip thumbnails are affected

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    Cartel Vault
    Cartel Vault
    Participating Frequently
    Jul 8, 2026 4:26 PM UTC

    following up

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    Cartel Vault
    Cartel Vault
    Participating Frequently
    Jul 9, 2026 4:27 PM UTC

    following up

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    Cartel Vault
    Cartel Vault
    Participating Frequently
    May 6, 2026 11:07 PM UTC

    I’m having this issue on Premiere 26.2.2. Fully cleared all media cache files and still seeing this.  The tab is extremely important when it works but now it’s unusable. System specs here:

     

    Hardware Overview:

      Model Name: Mac Studio

      Model Identifier: Mac14,13

      Model Number: Z17Z000MJLL/A

      Chip: Apple M2 Max

      Total Number of Cores: 12 (8 performance and 4 efficiency)

      Memory: 64 GB

      System Firmware Version: 11881.140.96

      OS Loader Version: 11881.140.96

      Serial Number (system): PR90C30P4Y

      Hardware UUID: 98038B6B-EF30-58DB-92B6-428A6A8EC392

      Provisioning UDID: 00006021-001448E13447401E

      Activation Lock Status: Disabled

     

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    Cartel Vault
    Cartel Vault
    Participating Frequently
    May 11, 2026 5:09 PM UTC

    following up - reach out to me beau@cartel.tv

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    Cartel Vault
    Cartel Vault
    Participating Frequently
    May 12, 2026 5:08 PM UTC

    following up

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    HoehneDesign
    Known Participant
    Apr 20, 2026 2:37 PM UTC

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

     

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    An enthusiastic user of the companies apps
    jamieclarke
    Community Manager
    jamieclarkeCommunity Manager
    Community Manager
    Apr 20, 2026 3:09 PM UTC

    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!

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    HoehneDesign
    Known Participant
    Apr 20, 2026 8:11 PM UTC

    Hi Jamie, thanks for your reply. The latest update of Premier Pro Beta (26.3.0 - Build 50), which I installed about a half an hour ago, has fixed the issue… the thumbnails are no longer just noise, but accurate representations of the clips. Thank you.

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    An enthusiastic user of the companies apps
    RogerAtCat
    RogerAtCat
    Known Participant
    Sep 18, 2025 1:41 PM UTC

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

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      Sam LeinenAuthor
      Participating Frequently
      Aug 23, 2025 9:31 PM UTC

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

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      Community Manager
      Dani_V.Community Manager
      Community Manager
      Aug 22, 2025 3:30 PM UTC

      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?

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      Community Manager
      Dani_V.Community Manager
      Community Manager
      Aug 19, 2025 4:07 PM UTC

      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?

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      RogerAtCat
      RogerAtCat
      Known Participant
      Aug 19, 2025 2:52 PM UTC

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

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