Potential Mod Conflicts due to Questionable Mixin
I'm the developer of LoadMyChunks and I was recently made aware that my mod breaks electrical connector power transfer in your mod in this issue.
I looked through your source code and found that there is a conflict between my LevelMixin and your LevelMixin which basically disables yours. LoadMyChunks currently interrupts the normal tickBlockEntities behavior to make block entities tick chunkwise and then immediately cancels the method before your mixin is called. Your LevelMixin is used to tick all ElectricalNetworks in the world which means that if your mixin is somehow cancelled no electrical networks will tick.
I have a solution for this problem on my end that I will be implementing but your mixin also apparently conflicts with one in optifine so I suggest you just move to using Fabric's ServerTickEvents.EndWorldTick event which does not suffer from these sorts of issues.