nope, the sorcerer is no longer listed in my follower list and my follower count went down by one.
just had same thing happen in Siptah official 6111.
The green circle is my main base where I placed the sorcerer. the yellow circle is a secondary base. the red circle is where the map showed the sorcerer to be. I went to the location and she was not there and then the follower list showed her as returning home. 20 minutes later she was removed from my follower list and my count went down by one. nothing in the event log.