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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

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    RogerAtCat
    RogerAtCat
    Known Participant
    Aug 19, 2025 2:41 PM UTC

    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. 

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    Rex Lint
    Participant
    Aug 18, 2025 10:37 PM UTC

    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. 

     

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    Sam LeinenAuthor
    Participating Frequently
    Aug 18, 2025 10:34 PM UTC

    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 :).
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    Community Manager
    Dani_V.Community Manager
    Community Manager
    Aug 18, 2025 10:24 PM UTC

    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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    Rex Lint
    Participant
    Aug 18, 2025 8:46 PM UTC

     

    Having the same issus. Just updated to 25.4 (build99).  The AI search tab.  mostly RED files and some Mavic 3 pro.   the thumbs will display propery if I roll over the thumbnail.  I dumped and deleted cache and did a restart.  Any help would  be great. Make my search tool a bit clunky. 

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      RogerAtCat
      RogerAtCat
      Known Participant
      Aug 18, 2025 7:54 PM UTC

      Same glitchy thumbnails over here. Like exact same. Pink and green stretched/pixelated images. It's not every clip nor sequence in the search panel, but it is on every Marker in the Marker tab. 

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      RogerAtCat
      RogerAtCat
      Known Participant
      Aug 18, 2025 7:47 PM UTC

      Came here to second this exact same glitchy behavior.
      My setup: M1 Ultra Mac Studio - Sequoia 15.6 also a Black Magic Ultrastudio 3G.

      Premiere Pro 25.4.0 (build 99).

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      Community Manager
      Dani_V.Community Manager
      Community Manager
      Aug 14, 2025 9:49 PM UTC

      Hi @Sam Leinen,

      Thank you for reporting a problem and for the information provided.

      What kind of files are you working with? Is this happening with the thumbnails of all media types in the Markers and Search panel, or only specific file formats?

      Have you been able to try your project with the MacBook Pro only, and with no external monitors or outputs?

      Sorry for the frustration,
      Dani

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