Sound Mix EQ is applied incorrectly

It looks like Sound Mix EQ is always applied to all sound classes, despite any settings.

Here are repro steps for a potential bug:

1 - Create two Sound Classes, e.g. Music and SFX, each with Apply Effects enabled

2 - Create a Sound Mix

3 - Open the Sound Mix, enable EQ, and assign SFX Sound Class to this Sound Mix in the Sound Classes section

4 - In level BP add Push Sound Mix Modifier function, assign the Sound Mix created in point 2 to it, and connect it to Begin Play

5 - Add two sounds to project (Sound A and B)

6 - Assign Music Sound Class to sound A and SFX Sound Class to sound B

7 - Add both sounds to the level, for example as Ambient Sounds

8 - Play

Current Result: EQ is applied to both sounds.

Expected Result: EQ should be applied only to sound B.

Basically the same thing happens when I try to use the Passive Sound Mix.

Done, thanks.


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