As discussed in Discord, when LittleTiles is installed multiblocks such as the fusion reactor are broken.
Old magnets before the mod was installed (or between reinstalls) are fine, but newly placed magnets will refuse to turn on.

This causes the fusion reactor to not want to start up because it thinks the electromagnets are non powered.

I'm not sure which mod is to blame yet, so I'm posting this on both issue trackers and linking between said issues.

Versions:

• Minecraft: 1.12.2
• Forge : 14.23.3.2669
• LittleTiles : 1.5.0-pre97_mc1.12.2
• NuclearCraft : 2.10j

LittleTiles issue : CreativeMD/LittleTiles#85

That's a weird issue and I have no idea why LittleTiles could cause something like this. I suspect it's one of the asm transformations I do, so here is a small list of things I do:

Universal

• Remove message size limit in NettyCompressionDecoder
• Remove nbttagcompound size limit in PacketBuffer
• Add check for different AxisAlignedBB class in AxisAligned.intersects()
• Add calculateYOffsetStepUp(AxisAlignedBB,AxisAlignedBB,double) to AxisAlignedBB
• Redirect ForgeHooks.isLivingOnLadder() to my own method
• Change one call of AxisAlignedBB.calculateYOffset() in Entity.move() to AxisAlignedBB.calculateYOffsetStepUp()

Client

• Add method call in Minecraft.middleClickMouse()
• Add method shouldUpdate() to ITickable
• And If-case to World.addTileEntity() so it will only add a tileentity to the ticking list, if ITickable.shouldUpdate() returns true
• Remove all tileentities which should not tick (due to ITickable.shouldUpdate() returning false) from the ticking list

Rendering

• hook into RenderGlobal.loadRenderers() and change new ChunkRenderDispatcher() to new LittleChunkDispatcher()
• Add field LittleStructure littleBed to EntityPlayer
• Redirect EntityPlayer.getBedOrientationInDegress() to my own method.
• Add a call to one of methods in ForgeHooksClient.orientBadCamera()
• Redirect RenderChunk.resortTransparency() to my own method
• Change some more stuff in rendering a RenderChunk
• Add field boolean littleTilesAdded to BufferBuilder class
• Set littleTilesAdded to false in BufferBuilder.reset()

So maybe you have an idea of what is causing this issue?

I imagine it's a clash between your ITickable.shouldUpdate() and TilePassiveAbstract.shouldUpdate() in NuclearCraft.

@CreativeMD I don't know why your adding the method, but I think you should rename to something very specific and unlikely to clash like ITickable.shouldLittleTilesUpdate() as i imagine shouldUpdate() is a method added to a large number of tiles in various mods.

Oh right ... damn completely forgot about that ... it will be fixed in the next pre-release (don't know when it will be there).

Awesome - cheers!