Hearthling glitches after promotion

I demoted 2 hearthling footmen into workers. Then I promoted one hearthling worker into a hearthling footman. I get an error message, then the hearthling i promoted freezes and doesn’t move no matter what.
Steps to reproduce:

  1. Demote two footmen into workers.
  2. Promote one worker into a footmen.
  3. There you go.

Expected Results:
The worker that is promoted was supposed to move around and be on watch.
Actual Results:
He freezes and an error message beeps up.
Error message 123
If there is any need I can post the error message.
Version Number and Mods in use:
No mods, Alpha 17 latest update.
System Information:
Alienware, Windows 10 GTX 970M, Running on i7 intel core laptop

A post was merged into an existing topic: Change job - bug report