As it is the exact same reported before, I can just refeer to the previous “ancient” report:
While I have noticed it firstly in a modded solo game, removing all mods and starting over a fresh save incurrs in the same problem with the Thralls I have tested.
Greetings @KorgFoehammer ,
Thank you for reporting this issue to us, but could you please use the given Bug Report Template?
This template has most of the information we need to start investigating and will make the process a lot quicker for everyone 
You can find it here: NEW Bug Report Template
If possible, please add examples such as screenshots or a video.
Thanks in advance!