Windows Update KB5029919 causes Shotcut to be slow and crash

Bug
1

What is your operating system?
Windows 10 Pro 22H2 Build 19045.3324

What is your Shotcut version (see Help > About Shotcut)?
23.07.29

Can you repeat the problem? If so, what are the steps?
(Please be specific and use the names as seen in Shotcut, preferably English. Include a screenshot or screen recording if you can. Also, you can attach logs from either View > Application Log or right-click a job and choose View Log.)

September 16 Windows decided to install three updates while I was powering off my computer that night.
I’ve been working on a fairly big video with lots of clips and sound. Approximately 35 minute long video. Wich have worked out good when I have edited long videos before. Never had major problems.
The very next day I continued to work on the video but everything soon came to an halt. Everything was so sluggish. Shotcut crashed all the time and I could not get anything done.
So I tried to start another project with just a couple of videofiles. Same issue occured. Sluggish and impossible to work with.

I then tried to edit with proxies and even then it was sluggish. To such an extend that it was almost impossible to work with.
I decided to upgrade from 16 to 32 gig of RAM. Same problem. So I knew it could not be hardware related. Atleast the RAM. My CPU is Intel(R) Core™ i7-8650U CPU @ 1.90GHz 2.11 GHz
GPU is Intel UHD Graphics 620. Computer is a HP Elitebook 840 G5.

Then after trial and error trying to disable start-up-elements and different things I remembered the updates that was installed september 16.
I looked in the update log for windows and found three different updates installed that evening.

KB5030211, KB5029919 and Servicingstack 10.0.19041.3385
I first paused any updates for the next 9 days.
Then I uninstalled KB5030211. Rebooted and tried to open my project in Shotcut. No difference. Slow and sluggish.

Then I uninstalled KB5029919. Rebooted and fired up Shotcut. Everything was back to normal.
Link to the update.
https://support.microsoft.com/en-gb/topic/september-12-2023-kb5029919-cumulative-update-for-net-framework-3-5-and-4-8-1-for-windows-10-version-21h2-and-windows-10-version-22h2-c483a458-3d08-47b4-b8ed-a01f7861d978

1 Like
2

Shotcut does not use .NET, and I doubt there is anything we can do about this. Maybe during the updates something was very busy on the system it something went wrong with the graphics subsystem.

3

I just ran windows update on my win10 system, and I did not get this update. Instead, for .NET updates I got released the same day:
September 12, 2023-KB5030180 Cumulative Update for .NET Framework 3.5, 4.8 and 4.8.1 for Windows 10 Version 22H2 - Microsoft Support

My update has the same security fixes as the one you did but with none of the “Quality and Reliability Improvements.” Maybe you are on some other update track that brings in less tested updates.

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