New Voltz user, really enjoying the mod pack but I have run into an annoying issue related to my copper wiring. I have found frequently that when I load the game and I am in my base that my wiring is no longer connected. It's not broken and on the ground but it they individual wires are not connected to one another and the majority of the time power will no longer flow thru them. It I exit MC and reload, some times the wiring load correctly.
I recently installed Optifine, I didn't have wiring down before that. Not sure that matters but I have seen other mods act funny with Optifine.