1. When trying to find the Lock Code in the Research Table, the message is that the item is not searchable. It is a mistake from my server or change the game?
     
  2. It is default blueprint, its not researchable.
     
  3. However the earlier version could be made research
     
  4. it was changed already in the last update...
    Devblog 66 (http://playrust.com/devblog-66/) at Balancing: