When trading ink with 2 different wandering traders, the ink will not stack.

When I traded ink from a wandering trader the ink, was acting normal and stacking. Then the next time a wandering trader came to my base I also traded ink with him but the ink from the first wandering trader was not staking with the other one. Then when I took my ink to my librain villager it would not take it even though it said the ink trade was open. On top of all that the ink would not turn into black die. After seeing this I decided to go onto a creative world and I got the same revolts, ink did not stack, library villagers would not trade ink, and ink would could not be crafted into black die