I am using a turtle to mine out a brick floor. But when equipped with a iron pickaxe the result of turtle.dig() is

false
"Cannot break block with this tool"

But when I equip the turtle with a axe, it works but the item doesn't go into the turtle inventory. I have tracked the issue to this mod since this mod allows for the turtle to use more than just the diamond toolset. Which I checked and works fine for diamond tools.