Custom audio replacers not working as intended

So with the new Xen update, I wanted to try it out again, but in the process of TRYING to get my client set up, it looks like there’s something borked with the VPK system and using custom audio mods.

Case and point: Failed to load sound “)weapons\shotgun\double.wav”, file probably missing from disk/repository

I KNOW I built a file (that specific one), put it into my custom VPK and the game loaded it (a majority of the other sound replacers I fished out of my other clients work as well). It just won’t play certain sounds and its getting on my nerves because I cannot find the cause of the issue.

I’ve rebuilt the cache, checked out the manifest, and even gone through some other options at my disposal before posting here. So what gives, how do I get this working properly?