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.