Bug Report OBS crashing when setting video parameters


New Member
I am using:
OBS 23.0.1 (64bit, windows)
Windows 10 Pro 64bit (latest version 10.0.17763.348)
Avermedia Extremecap U3 CV710 (with the latest drivers (

In OBS, I added a Video Capture Device in Sources. For this capture device I need to change the audio source, so I need to access "Configure video" button. When I press this button the OBS is crashing (Woops, OBS has crashed!). The software that came with the capture device is working fine with the same driver. Only the OBS is crashing in that particular situation, but it is very important to me because I need to change the sound source in the capture device.

Attached you can find the crash log.
Do you have any idea where is the problem coming from?

Thank you!


  • Crash 2019-03-06 01-43-21.txt
    50.1 KB · Views: 29


Forum Admin
The crash is caused by whatever device installed proppage_fx3_x64.ax. Perhaps if you inspect the properties of c:\windows\syswow64\proppage_fx3_x64.ax it will reveal more information as to which device this is, but it may be the Extremecap U3 itself.


New Member
Yes, I confirm, the file proppage_fx3_x64.ax was installed with the Extremecap U3 drivers. So the problem is not with the OBS, but with the driver?. This case I will ask Avermedia for support.

Thank you.