Participant

Shift+Drag to resize all track heights at the same time is broken in Premiere 26.2 and 26.5 Beta

Forum|Forum|2 months ago
May 27, 2026
4 replies
135 views

Issue: Holding the Shift key while dragging track dividers in the timeline header fails to adjust all track heights simultaneously. Instead, Premiere completely ignores the Shift modifier key and only resizes the single hovered track.

Steps to Reproduce:

Open any sequence containing multiple audio or video tracks in the timeline panel.
Hover the mouse cursor over a track divider within the track header zone (next to track names/locks) until the vertical resize arrow cursor appears.
Hold down the Shift key on the keyboard.
Click and drag vertically to change the track height.

Expected Result: All corresponding video or audio tracks should resize concurrently to match the height of the track being dragged.

Actual Result: Only the single track under the mouse pointer changes height. The Shift modifier is completely ignored.

Screen Recording: https://drive.google.com/file/d/1MXTTV74yZD1vIpy4q9dX3JdMTPH0zwpG/view?usp=sharing

Premiere Version: 26.2 (Release) and 26.5 (Beta)

Operating System: macOS Tahoe 26.5

GPU Driver (Windows only): N/A (Mac System)

Video Format: N/A (UI / Timeline bug, not clip or codec specific)

Helpful Context

Does it affect all projects or only some? It affects all projects, across the board.
Does it affect new, empty projects? Yes. Creating a brand new, empty project and sequence yields the exact same broken behavior.
When did the problem first begin? The problem began immediately after updating the operating system to macOS Tahoe 26.5 and running Premiere version 26.2 and above.

Additional Note for Engineering: I am running a MacBook Pro 16-Inch (Nov 2023) with an Apple M3 Max and 64 GB of unified memory. I have already attempted a full Premiere preference reset, deleted the cached Layouts directory, and toggled OS Accessibility settings for Premiere off and on to rule out OS background permission blocking. The issue persists globally.

A

AroWolf

Participant

I thought I was the only one that noticed this!! I never knew how much I used that feature till now that its gone.

KatieToo

Community Manager

@Chicken Dinner Wanted to update you that the team’s looking into this. Appreciate your time giving us those details.

Thanks for your post,
Katie

KatieToo

Community Manager

Hi @Chicken Dinner,

Welcome to the Premiere Pro forums! We are glad to see you here. Thanks for providing us all that information. I took a look at your screen recording too and wanted to clarify something: are you holding Shift and dragging on just that track divider line itself? You can change the track sizes by hovering over the tracks area to the right, like you were, but you don’t need to specifically be on the dividing line. Can you let me know if that changed the outcome?

So you’ll want to move the mouse pointer into the free space directly to the left or right on say, Video 1 track, then hold down Shift and use your mouse scroll wheel or dragging on a trackpad to see if all of them respond now as expected by getting taller or shorter. If you pull and drag on just the dividing line, it changes the single track, which is what I was seeing in your capture.

Again, thanks for all your setup and information, and hope to hear back.
Appreciate your post,
Katie

Ron Rigler

Community Manager

@Chicken Dinner thanks for reporting this issue. You should be able to use SHIFT+scroll wheel or trackpad as a workaround.

Helpful Context

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