So this pack was made only for SP, but if you are able to install ELS into your fivem server, it would work, although I won't be able to provide support for FiveM use
Yeah, I've been seeing that lately. It comes down to I believe it's the graphics mod, and the texture to the emissives that are casing that issue. I am looking into fixing it soon.
Go into the .+ytd in openiv and change the compression on the texture to DTX5. Also if you are running NVE, for whatever reason, 4K textures don’t always work on it.