So I’m attempting to implement a custom walking sounds on different materials feature. The actual sounds playing and such aren’t the issue however. The issue lies in line 15:
c.HumanoidRootPart:WaitForChild("Running"):Destroy() -- c is taken from .CharacterAdded
This line of code is attempting to delete the default running sound. However, when I try, it does this.

I’ve tried putting a wait before it(up to a full second), and it still occurred. I’ve tried Debris:AddItem, but the warning still outputted. I’ve just now attempted to just set the volume to 0, but yet it still happens
Is there a boundary put on the server not allowing it to access these sounds? Why does it say it isn’t there, when it clearly is there? Please help me with this. Thanks!