What exactly happens when you make long recording. Does Action! hang when saving video and video cannot be played?

Do you save video on external or internal drive?

So the problem is you don't hear audio on your PC, but there is an audio in the recording?
I don't think you would want to listengame audio on your PC anyway, because it would be delayed compared to a realtime gameplay, that is how capture cards work.

Hello, thank you for contacting us. Please provide us more information about your problem: Details about recording settings Does problem occurs both for AVI and MP4 recordings? Does it occur every time you record longer video? Does it occur for every game or only for a 1 title or a few? Does problem...

Because YouTube does not support multiple audio tracks anyway.

In the main tab, next to selected framerate change VFR to CFR and see if that helps.

Check if hardware acceleration is available. If you record in MP4 without hardware acceleration then you won't get much out of it.
If hardware acceleration in not available then it is better to record in AVI.

Hello.
I have just tested streamlabs alerts and there are sounds. Not sure why it wouldn't work for you. What sound sample do you use?

Our AVI codec offers best quality but the file size is large. You can export AVI file to MP4 using export feature in Action!

Press Windows key + R to open "Run" window.
Type msinfo32 and click OK to open System Information.
Now click File -> Save. Save the file on your desktop, this can take a while.
Attach generated file to your reply.

We haven't changed anything recently, regarding the file manager. Most likely this issue is caused by 3rd party software, maybe antivirus activity.