Hmmmm.... This was most likely caused because of the loyalty system. Like how you cant put the master to prostitution because the master dosn't have it. For slave's its working just fine.
Ver number.
Only the master with beauty parlor unlocked.
The icon for tattoo for slaves.
![](https://img.itch.zone/aW1nLzk3MDA2MDIucG5n/original/qZoOL8.png)