[SOLVED] Addition not doing anything for unknown reason?

Whenever I try to do simple addition it just keeps the number the same as if I never added anything. I can verify that it is running the line of the script where I do the addition because I have a print immediately before it which prints when I run the script.

This is where the addition takes place:

print("recently rolled so increasing max distance") --Prints correctly
MaxDistance += 25 --Doesn't do anything but also has no errors

The entire loop this is happening in is:

while LoopActive == true do
	wait(0.33)
	local RootPart = Character:FindFirstChild("HumanoidRootPart")
	if RootPart ~= nil then
		if StaminaTable[Character.Name] ~= nil and StaminaTable[Character.Name].Stamina < 12 then
			StaminaTable[Character.Name].Stamina += 1
			PhysicalActionEvent:FireClient(Player, StaminaTable[Character.Name].Stamina)
		end
		if StaminaTable[Character.Name] ~= nil then
			StaminaTable[Character.Name].CD = false
		end
		if DelayedPreviousPositions[Character.Name] ~= nil then
			local PreviousPos = DelayedPreviousPositions[Character.Name]
			PreviousPos = Vector3.new(PreviousPos.X, 0, PreviousPos.Z)
			local MaxDistance = (Character.Humanoid.WalkSpeed * 0.33) + 4
			local SeatPart = Character.Humanoid.SeatPart
			if SeatPart ~= nil then
				if SeatPart.ClassName == "VehicleSeat" then
					MaxDistance = (SeatPart.MaxSpeed * 0.33) + 12
				elseif SeatPart:IsDescendantOf(game.Workspace.Vehicles) ~= true then
					MaxDistance = (SeatPart.Parent.VehicleSeat.MaxSpeed * 0.33) + 4
				else
					MaxDistance = 99999
				end
			elseif Player:FindFirstChild("RecentlyRolled") ~= nil and Player.RecentlyRolled.Value == true then
				print("recently rolled so increasing max distance")
				MaxDistance += 25 --This is the addition which isn't working
			end
			local Distance = (PreviousPos - Vector3.new(RootPart.Position.X, 0, RootPart.Position.Z)).Magnitude
			if Distance > MaxDistance then
				print(Distance, " was greater than ", MaxDistance)
				RootPart.Position = DelayedPreviousPositions[Character.Name]
			end
		end
		DelayedPreviousPositions[Character.Name] = RootPart.Position
	end
end

I have tried replacing

MaxDistance += 25

with

MaxDistance  = MaxDistance  + 25

but that didn't fix anything.

The script runs completely without errors and all the prints print correctly, yet it seems as if it is incapable of addition in that one spot for some unknown reason.

UPDATE: This only happens sometimes, the majority of the time it is able to use the value with the addition, but occasionally it uses the old value (yes it is adding to the value I verified with prints)

Not sure if MaxDistance was a NumberValue or created locally in the script. If it is a NumberValue or IntValue then try adding .Value

MaxDistance.Value = MaxDistance.Value + 25

Otherwise, I'm not sure what is wrong.