Microsoft’s September Patch Tuesday has quietly closed two disruptive Windows regressions introduced in August — one that interfered with MSI-based app installs by unexpectedly surfacing User Account Control (UAC) prompts for standard users, and another that crippled NDI-based streaming...
cve-2025-50173
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msi
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obs
patch tuesday
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rudp
streamers
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uac
windows 10
windows 11
Microsoft has formally acknowledged that its August 12, 2025 cumulative security update is responsible for severe stuttering, lag and choppy audio/video in NDI-based workflows on affected Windows 11 and Windows 10 builds, and vendors and community engineers have published an immediate—but...
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av production
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kb5063878
known issue rollback
latency
live streaming
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streaming issues
stuttering
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windows 10
windows 11
windows release health
windows10
windows11
wsus
Microsoft has confirmed that its August 12, 2025 cumulative updates introduced a serious regression that causes severe stuttering, lag, and choppy audio/video in NDI‑based streaming workflows on affected Windows 11 and Windows 10 builds — a defect tied to NDI’s default RUDP (Reliable UDP)...
av
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broadcast it
broadcasters
displaycapture
it administration
kb5063709
kb5063878
known issue rollback
live streaming
ndi
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obs
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patch tuesday
release health
security update
single tcp
streaming
streaming stutter
udp legacy
video latency
vmix
windows 10
windows 11
windows release health
windows security updates
Microsoft has acknowledged a new, practical regression introduced by the August cumulative update for Windows 11 (KB5063878) that can cause severe stuttering, dropped frames, and choppy audio/video in NDI‑based streaming flows — a problem that disproportionately affects multi‑PC capture and...
displaycapture
enterprise it
kb5063878
live production
live streaming
ndi
ndi regression
ndi tools
obs studio
patch tuesday
receive mode
release health
rudp
sccm
storage regression
tcp
udp
windows 11
wsus
The August 2025 Windows 11 cumulative update (KB5063878, OS Build 26100.4946) introduced a networking regression that is causing severe stuttering, lag, and choppy audio/video in NDI-based streaming workflows — a problem Microsoft has confirmed and that currently requires configuration...
displaycapture
kb5063878
live streaming
ndi
ndi tools
ndi tools for windows
obs
os build 26100.4946
patch tuesday
receive mode
release health
rudp
tcp
udp
vmix
windows 11
Microsoft has acknowledged that this month’s cumulative update has an ugly side effect for creators and broadcasters: Windows 11 and Windows 10 systems that installed the August 12, 2025 security patches can exhibit severe stuttering and choppy audio/video in popular streaming tools that rely on...
broadcast workflow
displaycapture
kb5063709
kb5063878
live streaming
microsoft windows
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ndi transport
obs studio
patch tuesday
release health
streaming latency
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tcp
udp
windows 10 22h2
windows 11 24h2
windows update
Microsoft has confirmed that its August 2025 security updates can break NDI-based streaming on affected Windows PCs, producing severe stutter, dropped frames, and choppy audio/video when Network Device Interface (NDI) is used with its default Reliable UDP (RUDP) transport — a regression that...
broadcast tech
displaycapture
it admin
kb5063709
kb5063878
live production
ndi
ndi access manager
ndi rudp
ndi tools
network transport
obs
real-time video
single tcp
udp legacy
video streaming
vmix
windows 10
windows 11
windows update
Microsoft has confirmed that the August cumulative security update for Windows 11 (KB5063878, OS Build 26100.4946) is causing severe stuttering, lag, and choppy audio/video when using NDI-based streaming flows — an issue that hits production tools such as OBS and NDI Tools and has forced...
broadcast
displaycapture
kb5063878
kir
live streaming
ndi
ndi access manager
ndi tools
network transport
obs
os build 26100.4946
release health
rudp
single tcp
transport modes
udp legacy
update management
video production
windows 11
wsus
The August 2025 Patch Tuesday cumulative for Windows 11 (KB5063878) has introduced an unexpected and painful wrinkle for live broadcasters: NDI-based streaming through OBS and other production tools can stutter, lag, and drop frames — even on healthy networks — and Microsoft has acknowledged the...
broadcast production
displaycapture
it administration
kb5063878
known issue rollback
live streaming
multi-pc workflows
ndi
ndi access manager
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ndi tools
obs
patch tuesday
rudp
streaming stutter
tcp
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video over ip
windows 11
windows update