Silver ingots don't work with recipe book, don't like stacking with themselves

[fermata4]

When I try to make an electrum ingot in a crafting table from the recipe book, for example, the gold ingots get put onto the grid just fine, but the silver doesn't budge. Same goes for all other recipes involving silver ingots. Additionally, when trying to pull them out of a crafting table or furnace by shift clicking, they do not stack with other stacks of silver ingots in my inventory.