Issue description:

While there are multiple working sps rendered each one has as many rendered lightning + core groups as there are sps rendered.

Steps to reproduce:

1. Build a sps
2. Make it run
3. Do both again
4. look one as many directions as possible while keeping the other one on the screen

Version (make sure you are on the latest version before reporting):

Forge: 32.0.67
Mekanism: d77fd2d
Other relevant version:

If a (crash)log is relevant for this issue, link it here: (It's almost always relevant)

[gist / pastebin / etc link here. Please make sure that it isn't set to expire.]

Can confirm it happens, and seems it occurs even if they are not both active.