OBS MP4 file sound cut off

[JayLee]

My computer is Mac M1 Pro.

I had tested VB cable,  Loopback Audio and etc.

When I used Zoom client version 5.4.6, there was no problem to play mp4 video file in OBS.  At the moment the ZOOM participants could hear the videos playing through the OBS.
After the version 5.4.6, the zoom sound was continued and disconnected. So I couldn't update new version. I 'm still use 5.4.6.

Then a few days ago, I received a mail from Zoom Video Communications about  Zoom Software Lifecycle Policy

At that mail from Nov 5, 2022, the min Zoom Client version required 5.8.6
I need help who solve this problem. Thanks.