1. Using Windows Update, update to Windows 10 1909 or 2004 per
https://obsproject.com/blog/five-simple-tips-for-new-streamers
2. At least one of your audio devices has a sample rate that doesn't match the rest. This can result in audio drift over time or sound distortion. Check your audio devices in Windows settings (both Playback and Recording) and ensure the Default Format (under Advanced) is consistent. 48000 Hz is recommended.
OBS Sample Rate:
44100 Hz
VoiceMeeter Input (VB-Audio VoiceMeeter VAIO):
48000 Hz
Microphone (Yeti Stereo Microphone):
44100 Hz
VoiceMeeter Aux Output (VB-Audio VoiceMeeter AUX VAIO):
44100 Hz
3. Please be aware that having the YUV Color range set to "Full" will cause playback issues in certain browsers and on various video platforms. Shadows, highlights and color will look off. In OBS, go to "Settings -> Advanced" and set "YUV Color Range" back to "Partial".
4. Record to FLV or MKV. If you record to MP4 or MOV and the recording is interrupted, the file will be corrupted and unrecoverable.
If you require MP4 files for some other purpose like editing, remux them afterwards by selecting File > Remux Recordings in the main OBS Studio window or enable Auto remux in the advanced settings.
Please a new log or use the log analyzer after making those changes.