@eshenk Actually, I fixed the issue already. I mistyped <Item> as <Items> so I corrected the issue and now it works. Thanks anyway!
For future reference, when suddenly your entire addon DLC stops working, then thats almost always caused by either a typo/error in the XML of the addon DLC itself, or the dlclist.xml file; whereas 'despite correctly installing them' is almost always untrue.
@krashadam after a lot of exploration n research the only i found out to make both work together is running ur gta in borderless fullscreen. it'll definitely work. Make sure u have both enb n reshade installed. If you're running the game in DX11 rename the dll file to d3d11.dll else try dxgi cos fr me most of the time dxgi never worked.
@skelepap Nice. I actually threw in the sound for the doors closing and I raised the volume of the engine startup, and now both sounds apply to the Stanier (presumably) but sound editing is a picky procedure, when something isn't the right Hz the game has a freak fit and it'll just make the sounds.awc file that was altered literally silent.