Hey
If you are using the weapon class and NOT the node then you should create a blueprint that extends from the weapon class, assign your desired mesh, socket name etc there. then spawn that blueprint and keep it as a reference. For spawning the weapon itself remember to use your blueprint which should alredy have a mesh assigned and do the spawning server side as usual
And theres alredy a screenshot on the marketplace showing off the plugin functionality though?
Also if you continue having issues i would advice to send me a PM instead, to not clutter up the tread 