Stopping looping sounds Wwise not working

I’ve got a looping sound in Wwise which is set to loop infinitely. I have two separate events - one that simply plays the loop sound and other one just stops it.

I call the play event from Unreal Engine which works fine but when I call the stop event the sound doesn’t stop. Doesn’t work for 2D or 3D sounds.

Is it possible to call stop events on looping sounds? If not, is there a different/best practice way to stop looping sounds? (i.e less convoluted than setting volume to 0 and then destroying the object).

Using Wwise 2017.1.3

Thanks!