Don't worry, the licensing system is flexible. Since you won't be using Spine any more on the old computer, installing and using it on the new computer is fine. You won't have any problems as long as you are using Spine on only your 2 computers.
不用担心,许可系统很灵活。 由于您将不再在旧计算机上使用Spine,因此可以在新计算机上安装和使用它。 只要您仅在两台计算机上使用Spine,就不会有任何问题。