This thread is about all npcs that are bugged due to not respawning or other bugged npc related stuff. Ill add some stuff ive discovered recently , feel free to post other known bugs in this thread.
post as much information as you got , like for example :
where the npc is located (map , screenshot , ...) ,
what type of bug (no respawn , crippled on respawn , not healing themself [also doc-ing himself]) ,