Lifts version 1.4-BETA+1.18
Ind Rev version 1.13.6-BETA

The lifts randomly stop accepting power from Industrial Revolution cables and run out of power. EDIT - does not appear to be random, actually happens anytime you exit the game and then re-log. This can be fixed by breaking the cable attached to the lift and placing it again.

I am assuming it is this mod and not IR, because I do not have any other issues with other mods accepting power, or to word it better, I do not have any issues with other modded machines or equipment randomly losing power to IR cables and needing to break and reattach them.

I noticed this aswell with my lifts.

With Modern Industrialization the lift blocks just randomly cut the power cables.