Footstep system not working?

Hello, I am new here so I apologize if I’ve done something stupid or posted in the wrong forum. But basically I have implemented a footstep system (image below), and it works perfectly on my custom made map. However, today I also downloaded a custom map called Dark Forest, and my footstep system doesn’t work on that map, when I walk it’s completely silent. Does it have something to do with that the ground is “landscape”?