Footstep Sounds in 4.6.1

I am trying to add footsteps to my project using 4.6.1 and I seem to be having an issue. Here is the video I am basing this off of.
From this video I have attempted to make footsteps but when ever I play the game nothing works. So I figured I would do a print string of the enum function to see what was being stepped on and the deafualt phys mat was the only thing coming up regardless of what I stepped on. I followed every step in the above video but nothing is working at all. It doesn’t break the game which is nice but it would also be nice to have these sounds. Below are some images of what I have going on. Note I do have the physc mats tied to their respective layerinfo as well.