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[Bug]: Windows 10/11 Update (KB5063709/KB5063878) create audio/video lag. - [Solved] by KB5065429 #1337

Description

@EODBruz

Issue is fixed

For everyone coming here from search results or been active in this issue.

  • update Windows - any update released September 9, 2025 (KB5065429) or later have a fix for this issue!

  • let us know here or by using the emoji on this post

Initial report

Is there an existing issue for this?

  • I have searched the existing issues and did not find a similar issue

This bug exists on the latest available release of DistroAV and supported environment?

  • I have checked this bug still exist on the latest available version of DistroAV
  • I have checked that my OS / OBS / NDI versions are supported

OBS Log [URL] - Important!

No response

Issue reported - Current Behavior

i updated my gpu drivers and windows 11 update.
Went to go stream with NDI and i was experiencing lag in the video/audio

i suspect the Windows 11 Update broke something
as i went back to previous driver and the issue still persisted
but found some interesting things

so if i dont use desktop capture my audio isnt lagging but as soon as i use game or desktop capture OBS on the 2nd PC starts lagging/no audio

turn it off and the audio on my 2nd PC is fine and no issues

Expected Behavior

https://www.youtube.com/watch?v=I47zPjkYiDc

Steps To Reproduce

so if i dont use desktop capture my audio isnt lagging but as soon as i use game or desktop capture OBS on the 2nd PC starts lagging/no audio

turn it off and the audio on my 2nd PC is fine and no issues

Environment

- OS:Windows 11 24H2
- OBS:Lastest
- DistroAV:Lastest 
- NDI:Lastest

Pre-Check for Bug Report

  • I am able to reproduce the bug following the steps provided above
  • I have confirmed this bug exist on more than one device/computer
  • I have tested using a new scene collection to reproduce the issue
  • I have tested on a 'clean' OBS installation (aka with no other scripts or plugin installed)

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