BodyPosition removed from HumanoidRootPart and the player just stays in the air

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#1

I am making some custom water that uses BodyPosition to make the player and any parts in the ‘water’ float or sink however when I remove BodyPosition from the player when they leave the ‘water’ they drop a few studs and get stuck. The parts in the water fall as expected when it is removed. This is my code - it is just in a CanCollide false part.

local keys = game:GetService("KeyboardService")
local water = script.Parent
local bodyPosition


local function onTouch(part)
	if part.Parent.Parent:FindFirstChild("Humanoid") or part.Parent:FindFirstChild("Humanoid") then
		local plr = part.Parent.Name
		if part.Parent:FindFirstChild("HumanoidRootPart") or part.Parent.Parent:FindFirstChild("HumanoidRootPart") then
			Instance.new("BodyPosition", part)
		end
		
		local waterLevel = water.Position.Y + 0.5*water.Size.Y + 0.25*part.Size.Y
		local gravity = game.Workspace.Gravity
		
		local bodyPosition = part:WaitForChild("BodyPosition")	
		bodyPosition.MaxForce = Vector3.new(0, gravity, 0) * 200
		bodyPosition.Position = Vector3.new(0, waterLevel, 0)
		bodyPosition.P = 400
		bodyPosition.D = 10
	else
		
		print(part.Name)
		local density = part.CustomPhysicalProperties.Density
		local gravity = game.Workspace.Gravity
		local topArea = part.Size.X*part.Size.Z
		local volume = part.Size.X * part.Size.Y * part.Size.Z
		local mass = volume*density
		local weight = mass * gravity
		local sink = false
		local waterLevel = water.Position.Y + 0.5*water.Size.Y + 0.25*part.Size.Y
		if density >= 0.9 then
			sink = true
		elseif density < 0.9 then
			sink = false
		else
			warn("An error has occured")
		end
		
		if not part:FindFirstChild("BodyPosition") and sink == false then
			Instance.new("BodyPosition", part)
		end
		if not part:FindFirstChild("BodyGyro") then
			Instance.new("BodyGyro", part)
		end
		local bodyPosition = part:WaitForChild("BodyPosition")	
		bodyPosition.MaxForce = Vector3.new(0, gravity, 0) * mass * 1.6 * topArea
		bodyPosition.Position = Vector3.new(0, waterLevel, 0)
		bodyPosition.P = 400
		bodyPosition.D = 10

	end

end

local function touchEnded(part)
	if part.Name ~= "Handle" then
		if part.BodyPosition.Parent ~= nil then
			part.BodyPosition.Parent = nil
		end
	end
end

water.Touched:Connect(onTouch)
water.TouchEnded:Connect(touchEnded)
#2

Use ```language for code blocks and end with another ```.

Are you sure that you’re removing the BodyPosition on the server? If so, does it still exist on your client or other clients?

#3

Yes, when I have the explorer open, it disappears, I drop a few studs and reappears if I enter. On a server the part disappears on all clients and the same bug is there.