I'm making a building system, but these welded parts dont follow the object clone

clone = game.ReplicatedStorage.Buildings.Foundation:Clone()
            
            clone.Transparency = 0.4
            
            clone.Anchored = true
            
            clone.CanCollide = false
            
            clone.Parent = game.Workspace.BuildingsPreview
            
            clone.Owner.Value = player.Name
            
            run = runService.Stepped:Connect(function(playss)
                clone.Position = mouse.Hit.p + Vector3.new(0, 0.5, 0)
                

https://gyazo.com/5952255d601c7b6d3e2a77131fa74312

i have objects inside of clone, but they wont move along with clone, they are welded with weldconstraints