Hey, I love this mod, it's super useful! But I found a bug with ver. 4.3.4, where if anything in the chest is under a stack, e.g. 60 coal, and you try to shift click more than 4 coal in, you lose the excess as it doesn't start a new stack. Also, it seems like the chest code is rewritten each time it's broken, because I gave it a new name via the anvil for ease of use, but it was reset to the original name when broken. Hope you can fix these, gigabit101!

I've noticed this as well. If I have 10 iron, and I shift-click a full stack in it, the 10 becomes 64 and the rest is gone. It's a bit annoying. Happens with 1.12-4.4.0 in the All The Mods 3 pack.