Microsoft has acknowledged a complication from the Windows 11 August 2025 Security Update that affects streaming applications, causing "severe stuttering, lag, and choppy audio/video" when using the Network Device Interface (NDI). This issue impacts popular streaming software like OBS and NDI Tools, particularly when the 'Display Capture' feature is activated. The problem affects various Windows versions, including Windows 11 24H2, Windows 10 22H2, and Windows 10 21H2, and is rooted in the Reliable User Datagram Protocol (RUDP). Microsoft suggests switching to TCP or standard UDP as a workaround or uninstalling the update, though the latter carries risks. Users who have not yet installed the update are advised to postpone installation until a resolution is provided, but no timeline for a fix is currently available.