Extented BlockState data wipes after server restart

So i have IndustrialCraft 2 installed, when i place a block from ic2 and then try to get BlockState, i got:

ic2:te[facing=down,material=ic2_material_machine,transparent=false,type=nuclear_reactor]

Then iam restart server and try to get same block BlockState and i got:

ic2:te[facing=down,material=ic2_material_machine,transparent=false,type=invalid]

so “type” lost after restart. Without this i cant get what actualy this block is.

Is this sponge issue or ic2 issue? any chance to solve this problem?