Video decoding issue.

Wolgulc

Wolgulc

Member
Hello!
While trying to record over 2 hours of gameplay, I encountered a problem with the resulting video:

- A video decoding glitch at the very beginning (a strange, dark mess of pixels, followed by nothing after about a second).

- Loss of game audio (though it returns whenever a cutscene or credits sequence begins).

I am using OBS version 29.0.2. I haven’t updated it because, when I previously tried version 31.0, I experienced an audio/video desync issue; version 29.0 was the only stable one, so I’ve avoided further updates.

My graphics card is an RTX 4060 Ti, running the latest drivers. The game is being played on a gaming PC, which is connected to the recording PC via an AVerMedia Live Gamer Extreme 2 (also running the latest firmware/software).

I actually updated the AVerMedia device specifically because these issues started occurring a few days ago though the bugs only appear about half the time. Both PCs are fully updated with the latest version of Windows, and the gaming PC also has the most recent graphics driver installed.

What could be causing this?
I initially suspected an issue with VLC, but the problem persists when using other media players.
As for the AVerMedia device, I’m not sure since, as mentioned, the issues only happen intermittently during recordings.

Thanks in advance for your help.
 
Update OBS, see if you are still able to reproduce the issue, and send a log capturing the issue afterwards here if so.
 
I just remembered that I also have another scene for recording time-lapses of my drawings, and the same thing happens there (there’s a 50/50 chance of encountering this issue).
This has been happening since the last Windows 10 update (mid-October 2026—since I’m in Europe, I’m still eligible for Windows 10 updates until October 2027).
The problem started around that time; how can I determine whether it’s Windows or something else that’s causing it?
 
I performed the 33.0 update (after skipping several years' worth of updates) and encountered no issues during a test run under the same recording conditions.
I didn't experience any audio/video desync unlike what happened back when I upgraded to a version 30.x release (I don't recall exactly which one).
That said, as I mentioned earlier, there’s still about a 50% chance that the problems I described in my first post will occur.
If the issue resurfaces, I will go ahead and post the log here.
 
I’m getting back to you because now the game audio in my recordings is acting up (my microphone, however, is being captured correctly).I’ve attached the log file from a recording that had no audio (I use an AVerMedia device and VoiceMeeter; both are outputting the sound correctly on my end)
— the file is named 2026-11-01 15-21-05.
After closing and restarting OBS Studio, the sound returned, so here is that log file as well:
— named 2026-11-01 16-50-22
What could be causing this issue?
Also, the OBS update seems to have resolved the video decoding bug, thanks for that!
 

Attachments

Your 2026-11-01 15-21-05 log shows that audio buffering hit the maximum value. This can be an indicator of very high system load and may affect stream latency or cause individual audio sources to stop working. Keep an eye on CPU usage (x264 encoder uses CPU, try using NVIDIA NVENC which uses GPU) especially, and close background/unnecessary programs if needed. Occasionally, this can be caused by incorrect device timestamps. Restart OBS to reset buffering.

Source affected (potential cause): Avermedia

Update OBS to 33.0.1 or the newest available version and make sure that your plugins are compatible with 33.0.1 and up to date.
 
Thanks for the reply.Regarding NVIDIA NVENC, which option is best?
Personally, I would use H.264 is that a good choice?
And as for the settings, should I keep the ones I was using for x264?
(Even though some things might change?)
 
It’s strange, though, because I’ve only been using this "AverMedia" setup for less than a year (since late 2025). I use a dual-PC system where the second PC is under very light load (less than 20% CPU usage), and these issues only started appearing after the mid-October Windows 10 update (I’m still receiving Windows 10 updates, as I’m in Europe).I managed to resolve the video decoding bug by upgrading to version 33.0.However, the audio bug seems to persist, though it does disappear at times (for instance, after restarting OBS, or during specific moments like in-game cutscenes or opening/ending sequences).

I’m going to see if updating to version 33.0.1 makes any difference. Otherwise, I’ll have to run tests every single time and it’s essentially a coin toss whether it works or not. Strangely enough, both Voicemeeter and AverMedia indicate that the audio is being routed correctly to OBS.Yet, whenever I check the footage, there’s a chance the game audio will be missing even though the microphone audio is still there.
 
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