Named Thralls missing as of today

I’ve been playing for about 2 weeks now. Haven’t touched it since Alpha around March last year. Been enjoying myself. Logged on and noticed all my Named Thralls are all gone. My Warriors and Archers are still in my base. But, my Blacksmiths,Tanners,Alchems & Taskmasters are all gone. Nothing is destroyed in my base. Nothing is stolen. Just my named Thralls are gone. Any ideas?

I play on Official Server #1582 PvP PC

Could it be that people have stolen just the thralls?