Caused by: java.lang.IllegalArgumentException: Expected non-proxy at [x=1727, y=34, z=-3244, index=0] while querying offset for connection Connection[type=blusunrize.immersiveengineering.common.wires.IEWireTypes$ShockingWire@5c6c55a7, endA=[x=1730, y=35, z=-3247, index=0], endB=[x=1727, y=34, z=-3244, index=0]], but got blusunrize.immersiveengineering.api.wires.proxy.IICProxy@6d534de5
    at com.google.common.base.Preconditions.checkArgument(Preconditions.java:399) ~[guava-21.0.jar:?] {}
    at blusunrize.immersiveengineering.api.wires.utils.WireUtils.getVecForIICAt(WireUtils.java:193) ~[?:?] {re:classloading}
    at blusunrize.immersiveengineering.api.wires.Connection.generateCatenaryData(Connection.java:133) ~[?:?] {re:classloading}
    at blusunrize.immersiveengineering.api.wires.ConnectorTileHelper.genConnBlockState(ConnectorTileHelper.java:52) ~[?:?] {re:classloading}
    at blusunrize.immersiveengineering.common.blocks.generic.ImmersiveConnectableTileEntity.getModelData(ImmersiveConnectableTileEntity.java:94) ~[?:?] {re:classloading}
    at net.minecraftforge.client.model.ModelDataManager.refreshModelData(ModelDataManager.java:75) ~[?:?] {re:mixin,re:classloading,pl:mixin:APP:create.mixins.json:ModelDataRefreshMixin,pl:mixin:A}
    at net.minecraftforge.client.model.ModelDataManager.getModelData(ModelDataManager.java:103) ~[?:?] {re:mixin,re:classloading,pl:mixin:APP:create.mixins.json:ModelDataRefreshMixin,pl:mixin:A}
    at me.jellysquid.mods.sodium.client.render.chunk.tasks.ChunkRenderRebuildTask.performBuild(ChunkRenderRebuildTask.java:74) ~[?:?] {re:classloading}
    at me.jellysquid.mods.sodium.client.render.chunk.compile.ChunkBuilder$WorkerRunnable.run(ChunkBuilder.java:290) ~[?:?] {re:classloading}
    at java.lang.Thread.run(Thread.java:745) ~[?:1.8.0_51] {}

First of all try without Rubidium, if it still does not work talk to the Mod author of Immersive Engineering.