Also I cannot get the macerator only the sigularity macerator same with compressors and that can only get the singularity compressor.
Duno why its doing this my only guess was it wasent added yet but it must be if others have it on minecraft 1.4.5
All good just installed the gregtech mod and using the matter fabricator out of that.
Not a bug. Working as intended.
If you would read the mod list for the FTB "Magic" world you are playing, then you would see that IC2 is not included in that pack. No IC2=no mass fab, macerator, etc.
It looks like you are adding to the generic pack, I'm guessing you may have an ID conflict OR assumed IC2 was in the pack and it's not installed.