Simple Grinder doesn't know about any modded ore, as I can see. For example, there is Base Metals mod (adds basic ores, dusts etc, like copper, tin, lead and so on). We need ore dictionary support, thanks!

@Rumaruka If you need help just let me know.

@jriwanek thank you :)

I trying :)

Ore Dict Enable in 1.12.2 version MC