Error: SV_StartSound: sound not precached (0)

I'm trying to make a TF2 carts map, and even though I have an ambient_generic with each sound that carts make in them (I read that this is how you apparently "precache" sounds), the carts make nothing but the idle and engine sounds. Jumping, landing, boosting etc. are all inaudible. Where these sounds would usually be played, TF2's console just outputs this:


Is this anything that I can fix? I'm unfamiliar with precaching in maps. I thought it was just as simple as the game calling sounds and playing them, but I clearly must be missing a lot of knowledge on the subject. Does anyone have any experience with this or a solution?

The Asylum said:

I claim to have no idea how the new kart mechanics work, but if it's anything like the problems with the HHH, you'll have to put all the sounds and models associated with the karts in the map first BEFORE the actual kart entities, and run that without the kart entities

Again, I'm flying blind here, but you could try that.

Click to expand...

I went ahead and started a new map, pasting in the lineup of ambient_generics with the sounds and then pasted in the rest of the level. Unfortunately, this didn't work. Where can I find out more on the topic of HHH sounds? I've never heard of the issue before and I can't find any results on it.

I just tried replacing the cart sound for the sake of experimentation and even that doesn't work. Hammer recognizes the sound file just fine in the sound preview, but the game won't have anything when it comes to cart sounds for some reason.