plr = game.Players.LocalPlayer.Character
humrootpart = plr.HumanoidRootPart
----

function IsIn(Part, Vec1, Vec2)
	local R3 = Region3.new(Vec1, Vec2)
	local Check = workspace:FindPartsInRegion3WithWhiteList(R3, {Part}, math.huge) -- yes

	
	if #Check > 0 then
		return true
	else
		return false
	end
end


while wait() do
	coroutine.wrap(function()
		
		if IsIn(humrootpart, Vector3.new(-1007.25, -200, 943.65), Vector3.new(1037.75, 200, -1101.25)) then -- big map
			print("Region1")
			if IsIn(humrootpart, Vector3.new(-446.7, -200, 509.95), Vector3.new(195.5, 200, -81.55)) then -- forest 1
				print("Region2")
			end
		end
			
	end)()
end

I have no idea why its not working, my region is correct.

Anonymous