Reverb audio effect not playing on music?

I used the Cindering music player and inserted all my music, I added the "reverb sound effect" and enabled it, it still plays without the sound effect. I tried going to soundservice in the explorer and changing "No Reverb" to something else, still doesn't work. I also tried adding the sounds without the music player along with a script I saw in a video (i tried w/ music player too) which enables the reverb and it worked but after one sound the other ones dont play. Please help!

In the properties of the sound instance, there should be a variable named SoundGroup. Try setting that to your effect.