OBS Hard Crash when "Write output only while recording" is enabled and stopping the recording

[balazsvincze]

Hello,

After elaborate testing it looks like when the "Write output only while recording" setting is enabled on Windows 11 OBS crashes due to LocalVocal.

I don't close out the possibility that this is an issue relevant to my system however I was only able to reproduce when enabling this option.

Steps to reproduce

• Set up LocalVocal with default setting for audio input and/or output
• Start a video or some audio to verify it's working, start a recording for couple of seconds and stop (working as intended)
• Add an output filename and enable save in SRT format (optional)
• Start a video or some audio to verify it's working, start a recording for couple of seconds and stop (no read/write access issues,working as intended)
• Enable write ouput only while recording
• Start a video or some audio > Start recording > Stop recording (crash)

Additional details
Unhandled exception: e06d7363
Date/Time: 2024-12-10, 15:13:27
Fault address: 7FFC2F41831A (c:\windows\system32\kernelbase.dll)
libobs version: 30.2.3 (64-bit)
Windows version: 10.0 build 26100 (release: 24H2; revision: 2314; 64-bit)
CPU: AMD Ryzen 5 3600 6-Core Processor

Let me know if there is any other detail I can provide. On my end this can be easily/constantly reproduced.

[phena109]

I am experiencing the exact same issue you are having. The most obvious difference is that I am on a Mac. I would not be surprised that if I do the same on Windows I will experience the same.

Correction, in fact it can crash the same way with or without the setting. That means the crash is due to something else, at least for my case.