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P: Adobe Premiere Pro v26.2.0 (Build 65) Severe System Hang when Accessing Menus and Panels

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Bug Report: Severe System Hang when Accessing Menus and Panels
App Version: Adobe Premiere Pro v26.2.0 (Build 65)

Issue Category: Performance / UI Responsiveness

Status: Recurring / Degrades over time

System Specifications
Processor: AMD Ryzen 9 5900XT 16-Core Processor (3.30 GHz)

RAM: 64.0 GB DDR4 3600 MHz

Storage: WD_BLACK SN770 NVMe SSD (Firmware: Latest/Current)

Operating System: Windows 11 Pro

OS Version: 25H2

OS Build: 26220.7872

Issue Summary
Opening any top-level menu or interacting with specific utility panels (Properties, Project Manager, Subtitles) causes Premiere Pro and the entire operating system to freeze for 5 to 7 minutes. The issue is cumulative; the application becomes increasingly sluggish the longer it stays open, eventually requiring a full restart to regain functionality.

Steps to Reproduce
Launch Premiere Pro v26.2.0 (Build 65) on Windows 11.

Perform standard editing tasks for a period of time.

Attempt to open any top-level menu (e.g., File, Edit, Clip) or the Project Manager.

Alternatively, use the Properties menu to adjust subtitle parameters, frame positioning, or zoom levels.

Expected Result
The UI should remain responsive, and menus/panels should open instantly without impacting system-wide stability.

Actual Result
The application stops responding immediately upon clicking a menu.

System-Wide Lockup: The entire OS freezes for 5–7 minutes. During this time, no other programs can be interacted with.

Performance Degradation: The "slug-like" behavior worsens over time during a single session.

Normal operation is only restored after a full application restart.

Additional Observations
Workaround Limitation: While keyboard shortcuts work initially, they do not prevent the freeze once a mouse-driven menu is accessed.

Hardware Note: Given the high-end specs (Ryzen 9 5900XT, 64GB RAM, NVMe SSD), this is clearly a software/UI conflict rather than a hardware bottleneck.

Note for Support: This issue significantly impacts professional workflows as it forces a complete system halt multiple times per hour. Please investigate potential memory leaks or UI rendering conflicts in Build 65.

Joe_wpi

Inspiring

I’m attempting to use 2027 and still this bug persists! it makes editing near impossible with how much it freezes. After i hit post on this comment, and return to premiere, i will have to wait 90 seconds for it to recover for its freeze.

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Melodic_artistd4fd

Participating Frequently

Still happening in 26.5.2 (Build 5) on Windows 11 26300.9818 (i9-14900KS, 64 GB, RTX 5070 Ti, Studio 621.14). I have isolated the exact code path of the accessibility-related hang - it reproduces 100%.

When a UI Automation client reads the Premiere window, the main UI thread runs at 100% of one core for minutes inside Premiere's own WM_GETOBJECT handler ("Not Responding" + "Media Pending"). 24 of 24 identical stack samples:
Adobe Premiere Pro.exe (deep recursion, same frame repeated) <- 100% CPU
... window procedure
USER32!SendMessageTimeoutW (WM_GETOBJECT)
OLEACC!AccessibleObjectFromWindowTimeout
UIAutomationCore (incoming UIA request)
USER32!PeekMessageW (main message loop)

A/B test, same project and machine: with a UIA client attached the project open never completed (more than 2 minutes, UI thread 99-100%). With no UIA client it opened in 2-10 s and played, scrubbed, saved and reopened normally. UIAutomationCore.dll is loaded in Premiere in every hung session and absent in every good one.

So it is not only Magnifier: any UI Automation client triggers it (Magnifier, Text Cursor Indicator, Power Automate, AI computer-use agents).

@KatieToo @Amy the Stuv - I have a minidump captured during the hang and the full stack captures. How can I send them to engineering privately? Please also share the bug ID and whether a 26.5.x hotfix is planned. Waiting for v27 is not acceptable for paying professional users.

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hang_stack_capture_1_15-21-42.txt

hang_stack_capture_2_15-22-23.txt

Premiere_26.5.2_UIA_hang_evidence_redacted.zip

KatieToo

Community Manager

Hi all,
Just updating with another find from @take26504906kj40 regarding Accessibility related freezing with Text Cursor Indicator.

"Turning off Windows Settings → Accessibility → Text Cursor → Text Cursor Indicator eliminated the wait time for menu operations. Restoring the original Premiere settings continued to improve performance, and it remained smooth after updating to 26.5.1.

During the troubleshooting, I ended IME Copilot and also uninstalled Typeless. After removing Typeless, there was partial improvement, but the stop persisted, and it was resolved once the text cursor indicator was turned off. Therefore, this is not a strictly one-factor comparison test."

Link to the Questions post -

Appreciate your patience as the engineering team continues investigating this!
Katie

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P

pquaglino

Participating Frequently

Intel i7 mobile
Nvidia ADA 500 mobile(yeah it sucks but what they gave me)
64GB RAM

I had to roll back, as well as another peer at work...BUT!!! IT is saying they are going to force an update to be “secure” even though we are saying it removes our ability to work. Adobe, for real you need to fix this.

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MarvinHeston

Inspiring

deleted, due to double posting

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J

Jarle Leirpoll

Legend

I found that if I turn off the Windows UI zoom feature (Windows++ and Windows+-) the problem goes away

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ImageshopUK

Participant

x

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J

Jarle Leirpoll

Legend

.

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Jarle Leirpoll

Legend

I think I figured out the issue with the freezing when clicking menus!

When I do training, I always have the Windows Magnifier feature turned on (Win + '+', or Settings > Accessibility > Magnifier).

Once I disable that feature, Premiere stops hanging. Yay!

Please make sure Premiere and this feature can coexist, since my work depends on both!

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Jason327523480lib

Inspiring

I've never had Magnifier turned on on my Windows 11 PC and it still constantly freezes and shows "Not Responding". Mainly when I try and click on the colour Picker in the Properties panel. This has been happening way before this update and it's at least been good so far since upgrading to 26.5.2 when going into Project Settings and such (though I have not tested it extensively). Previous updates really struggled to even open those settings sometimes, let alone the simple colour picker.

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Jarle Leirpoll

Legend

The magnifier is just one of the accessibility features that may cause this. There’s also a screen reader, high-contrast themes, color filters, text & cursor scaling - and more.

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