Hello,
I use Minecraft 1.7.10, LunatriusCore-1.7.10-1.1.2.21 and Schematica-1.7.10-1.7.6.131.
When I first downloaded these mods, earlier this week, I created one schematic and pasted it on a server. Attempting to do another schematic but the printer stopped working. http://prntscr.com/mqnqpj
As visible in this screenshot there is something not letting the materials to be detected, this screenshot was taken in single player, and there is clearly a grass block in my hand.
I tried deleting the existing configs and reinstalled the mods, which did not fix this.
I went as far as restarting Minecraft (Generated a new .minecraft folder) and still receive this issue.
As I said before it did work the first time i used it, which means something must of changed, hope you can help me fix this.

Note: I use an Imac, and a player on the same server gave me his mod files and config to use and this problem still occurs.