When I use !ws, !sm_paints, etc and select a weapon, the plugin works perfectly like so;
http://prntscr.com/9i6rkq
However, as soon as I drop the weapon and pick up another, the skin goes back to being default as if the plugin has not saved my choice like so;
http://prntscr.com/9i6rcy
As you can see in the matter of 4 seconds the plugin appears to completley forget what I've chosen, this also applies when I use the second option (Choosing skins without having to hold the weapon whilst choosing)
Though for some reason !ws DOES save the knife and pistol you spawn with.
My friend made a quick server to test it, and it works perfectly for him, so I assumed it was conflicting with something in my cfg folder, when I removed server and gamemode_casual to test, the problem persisted, I'm not sure what else could be causing it.
My cvars are all set to the default for the plugin.