Was building an evaporation tower with a builders wand from Better builders wands and when the tower completed I saw the redstone particals then my client crashed. Looks like a rendering error.

MC: 1.10.2
forge: 2139
Mekanism: 1.10.2-9.2.0.294
http://pastebin.com/AgPQN2Dt

Try disabling mipmapping and reproducing without Optifine.

Disabled mipmaping and removed Optifine and it built fine. But once I added water to the multi-block it crashed. I believe when I built the first one it already had water in it.

http://pastebin.com/DpYapNq6

similar issue but with rendering TiC Smeltery controller
http://pastebin.com/YJJf6Z27

another similar issue, but with rendering universal fluid tank
(note: action sequence was placing a partially filled fluid tank (unintentionally) in a tinkers construct crafting table)

MC 1.10.2
Mekanism 9.2.0.294
Forge 1.10.2-12.18.2.2151
https://gist.github.com/jennybrush/c5c5a47700dd143884ea016554f3bd6f

Fixed in dev