Helicopter working but no liftoff when passengers is on board or a player is touching it

Hello everyone! I am having this unexpected problem and I am stuck.

I have this heli that is fully functional but the moment I put a seat on it, the passenger would prevent for the heli to takeoff.

In this clip, you can see a player next to it, and even with a high toque, there is no movement:

https://i.gyazo.com/86be748ee6753a92c35bfe861b1a7b6d.mp4

Any ideas of what could be causing this?

Please help!

Can I see the specific code for the lift off for the player?

I’m genuinely confused by this. Are you trying to create a helicopter just using a rotor? Did Roblox change something? Are you using a script to handle this and I’m just confused?

How do you know its fully functional if nobody can drive it? Does it move on its own and the player is just meant to ride it?

confused

local chg=Vector3.new(0,0,0)
local rot=0
local inc=0
while true do
	wait(.1)
	local lv=engine.CFrame.lookVector
	if up then
--		rotorSpd(0.6)
		if chg.y<30 then
			chg=chg+Vector3.new(0,2,0)
		end
	elseif dn then
--		rotorSpd(0.2)
		if chg.y>-30 then
			chg=chg+Vector3.new(0,-2,0)
		end
	elseif chg.magnitude>1 then
--		rotorSpd(0.4)
		chg=chg*0.9
	else
--		rotorSpd(0.4)
		chg=Vector3.new(0,1,0)--0,1,0
	end
	if w then
		if inc<max_speed then
			inc=inc+2
		end
		spd.velocity=chg+(engine.CFrame.lookVector+Vector3.new(0,0.3,0))*inc
		gyro.cframe=CFrame.new(engine.Position,engine.Position+Vector3.new(lv.x,-0.3,lv.z))
	elseif s then
		if inc >-max_speed then
			inc=inc-2
		end
		spd.velocity=chg+(engine.CFrame.lookVector-Vector3.new(0,0.3,0))*inc
		gyro.cframe=CFrame.new(engine.Position,engine.Position+Vector3.new(lv.x,0.3,lv.z))
	else
		inc=inc*0.9
		spd.velocity=chg+engine.CFrame.lookVector*inc+Vector3.new(0,0,0)
		gyro.cframe=CFrame.new(engine.Position,engine.Position+Vector3.new(lv.x,0,lv.z))
	end

	if a then
		if rot<math.pi/8 then
			rot=rot+math.pi/20
		end
		gyro.cframe=gyro.cframe*CFrame.Angles(0,math.pi/10,rot)
	elseif d then
		if rot>-math.pi/8 then
			rot=rot-math.pi/20
		end
		gyro.cframe=gyro.cframe*CFrame.Angles(0,-math.pi/10,rot)
	else
		rot=0
	end
end

The above code is on a local script, could this be the issue?

How do you know its fully functional if nobody can drive it? Does it move on its own and the player is just meant to ride it?<<<

To clarify, when the 2nd player is not near the heli, the player in the pilot seat is able to fly it without problems. The issue occurs when a player have taken a passenger seat before the pilot take his, or by simple having a player at a touching distance of the heli.

Thank you for the help in advance!

Network ownership is lost, from driver to passenger.

Make sure the driver has network ownership.

The torque is not the issue as it’s not the driving force which is the local script physics control of the helicopter.

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