Hello, when the Auto Workbench has a recipe that requires two or more items, the Auto Workbench can be blocked because filled with only one item that the recipe needs. Example: to craft a Coal Ball (IndustrialCraft), you need 8 Coal Dust and 1 Flint. The Auto Workbench's buffer can be filled with Coal Dust, preventing the Flint to be used in the recipe, and the whole system is blocked!

you can use gates to detect when that's gona heapen and shut off the coal dust input to work arround that

gona leave this up to @AlexIIL if this is a design flaw that needs fixing or not

gona close this as working as intended, buildcraft is a mod about automating everything and overcomming the chalanges, this can be perfectly automated with just BC and some gates to detect what it needs