Empty shulkerboxes will no longer be teleported to targets containing shulkerboxes with items in their inventory.
Previously, if an empty shulkerbox was to be teleported and no targets containing an empty shulkerbox of the same type could be found, but the plugin found a shulkerbox being used to group other items as targets, it would teleport the empty shulkerbox to one of those targets. This is generally undesirable behavior and could make it difficult to find where an empty shulkerbox went.
Now, the plugin will only teleport an empty shulkerbox to a target that contains an empty shulkerbox of the same type (that is, color). Even so, other plugin behavior like name tags and carrot-on-a-stick are still applicable when finding a suitable target for empty shulkerboxes.