Issue description:

Universal cables keep "disconnecting" from eachother, they look connected, but do not transfer energy. This appears to happen randomly, when i am in the area or logged out/away from the area.

Steps to reproduce:

1. unsure how to reproduce reliably.

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

**Forge: forge-1.12.2-14.23.1.2555-universal
**Mekanism: Mekanism-1.12.2-9.4.2.327
Other relevant version:

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

If there is a relevant log anywhere, let me know.
[gist/pastebin/etc link here]

Longstanding bug, only part of which we've been able to figure out. #4676