If an item of type NONE is inserted into an inventory, it almost certainly cause inventories to break - this is something I found when doing stuff with Nucleus, not obvious, I know! Instead, you should be using Inventory#clear() on your query, which clears the item.
If an item of type NONE is inserted into an inventory, it almost certainly cause inventories to break - this is something I found when doing stuff with Nucleus, not obvious, I know! Instead, you should be using Inventory#clear() on your query, which clears the item.
This should fix https://forums.spongepowered.org/t/trophy-adventuremmo-v1-6-0-mc-1-8-9-1-10-2-the-great-combat-update/14985/107?u=dualspiral