Moreover, most crafting item in the game will begin with colonist haul raw resource to the working bench. Then make an unfinish bulk stuff before start crafting. For some reason, crafting a crown, colonist just simply place steel on the smithy and craft it as it is (which is weird). The only exception I could think off is mortar shell, maybe? Still, the mortar shell is an ammunition, also give crafting exp too.
Are you using mods? I just quickly had someone craft a crown and they gained over 1k crafting xp.
No mod sir. I will re check it again one more time tonight. But I'm pretty sure my crafter not get anything crafting it.
I just checked again, I got about 750 experience for another crown. It isn't gained while actively crafted, but a lump sum afterword. I'm going to lock this thread, bug unreproduceable.