I play at 1976 official server and my crafting npcs keeps walking over and near my base. They never stops. It happened after Enhanced starts.
This is because living settlements was re-enabled despite the issues with it not being entirely fixed, which means that crafters are at risk of walking through closed doors and clipping through walls, sometimes dying in weird places where their drops can’t be retrieved. You can file a bug about it at this link if you lose a thrall that way Contact Us — Conan Exiles Help Center