Try this config:
I changed the Block IDS to the ones i had just after Wireless Redstone 128 to 132
I found a bug: Placing two isotopic seperators in one world, the slot for the empty cells are synchronized by all of them, making it close to impossible to run two at the same time.
I tried that source code and it still does the same exact thing.
The only mods i have installed are IC2 NEI and rocket science i don't think its an ID conflict because i can still use the blocks in creative mode but i cant craft them or get them at all in survival mode.