Microsoft has confirmed that the August 2025 security updates are causing severe lag and stuttering issues with NDI streaming software on some Windows 10 and Windows 11 systems.

This comes after widespread reports from users experiencing a wide range of performance problems when using various streaming apps, including OBS (Open Broadcast Software),

"Severe stuttering, lag, and choppy audio/video might occur when using NDI (Network Device Interface) for streaming or transferring audio/video feeds between PCs after installing the August 2025 Windows security update," the company said in a new Windows release health update.

"The issue affects streaming apps, including OBS (Open Broadcast Software) and NDI Tools, especially when 'Display Capture' is enabled on the source PC. The pro

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