I had put branches into barricade templates, and then I crashed out of the game as I was making twine. When I returned, all of the branches were bugged. They showed as not being in the barricade, but I was able to remove them. When I removed them, a branch showed in my inventory, then on the ground when I dropped it, but the branch was bugged, too. It showed no amount, and couldn't be used for anything.