I have fixed the following issues:

• An issue where items inside the smelting furnace were not being saved.
• An issue where inventory items were not visible on the client-side.
• An issue where durability could be restored by dropping and picking up items.

The term "Early version 1.xx" refers to "Version 1.xx of the Early Access," so after the official release, it will become "Version 1.0 of the Official Release."