QuickStack is mainly worth checking through quick-stack behavior, slot count, carry capacity, and encumbrance, containers, quick stack, and item transfer, crafting queue and recipe material use, shared storage on multiplayer worlds, and join path, client files, and server files. Do that in a copied save or test server before changing a main world.
Use Nexus QuickStack listing to confirm exact file names, branches, screenshots, and update notes; then judge the MOD by the in-game parts above, not only by whether the game launches.
- Use filled containers and mixed item stacks, then test with two players if the world is shared.
- Fill slots with real loot, die once if relevant, restart, and check whether items remain valid.
- Move mixed stacks between player, vehicle, workstation, and base containers.
- Queue several recipes, leave the menu, restart, and check materials and outputs.