appliedenergistics2-rv4-stable-1
MC 1.10.2
forge-1.10.2-12.18.3.2281-universal

Since updating to rv4 release we are seeing Drives, Cables, and buses vanishing from the world.
It is happening at random. I imagine during chunk unload. Servers/clients aren't crashing causing chunk errors or anything. Just normal coming and going of players.