[block & solution] thread is blocked because of browser source

[walker-WSH]

Operating System Info

Windows 11

Other OS

MAC

OBS Studio Version

30.2.3

OBS Studio Version (Other)

30.2

OBS Studio Log URL

none

OBS Studio Crash Log URL

none

Expected Behavior

no UI block

Current Behavior

I meet a block, but not reproduced again

Steps to Reproduce

MAC os

UI thread :

obs_graphics_thread:

Anything else we should know?

Suggest:
for mac os, should ProcessCef be called in browser::tick instead of browser::render ?
because in render function, so many locks have been hold before.
in tick function, there is no additional lock being hold that is more safe

by the way, I can't reproduce this issue.