Bug Report Audio desyncs while recording gameplay

[Dhiammara]

Hey guys,

I'm having an issue while recording gameplay with OBS. Yesterday I recorded a video (game on steam) that is about 35 minutes long. The recording looks fine, everything is running smooth. But when I'm trying to edit the video, I notice that the audio is not synced about half way through.
What is causing this problem to happen?

This is my PC specifications:

OS: Microsoft Windows 10 Home English
Version: 64-bit
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CPU Info:
Name: Intel(R) Core(TM) i5-6500 CPU @ 3.20GHz
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Computer Memory:
TotalPhysicalMemory: 16,305 MB
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Display info:
NVIDIA GeForce GTX 970
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Sound device:
Description: NVIDIA High Definition Audio
Description: Realtek High Definition Audio
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Hdd info:
Model: Samsung SSD 850 EVO 250GB -OS-
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Hdd Size:
Size C: disk: 232.28 GB
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Network:
Description: Realtek PCIe GBE Family Controller
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I'm recording in 1920x1080 60 fps.
This is a screenshot from my advanced settings:

I would appreciate your help!

Best regards,
Dhiammara