me too

look here: http://psteamcommunity.yuanyoumao.com/workshop/filedetails/discussion/778345456/1488866180600620382/

place mod at first load helps

depending on compile version of the mods ur running, switch mod load order can help, with 2.0 mod, not all stacking mods work correctly with auto crafting, this is a missing setting in some stack mods resources, 1 stack mod group as example forgot 1 tick box on the stone resource, this block auto crafting of paste+sparkpowder.

If you're still having issues with this, i have written up a document with instructions on how to fix this issue. Just follow it word for word and it should fix the issue for the Auto-Chembench. :) [https://1drv.ms/u/s!AsFfCXsjUDEh63i3QRDOrdpbSsQ1]