4.22.2 Passive Mix Does Not Work

Is it a known issue?

I’ve got a passive mix which mutes background music when player is close to boombox.
It worked earlier for half a year or something and now it does not.

It probably broke down after changing the engine version (4.21 > 4.22).

I have a test with the Passive Mix Modifier working on 4.22. Can you provide more information about your situation? Maybe an isolated test?