Decorations dissapearing?

0.11.5 - A couple days ago Everett randomly disappeared after finishing a realm. Today one of the gambling dwarves and a couple surrounding decorations disappeared. It’s not a big deal because I can place the latter down again. Can I suggest that Everett should be available in the “Utility/NPCs” under the decorations menu you know in case he just randomly decides to walk off out your castle…