Other bugs after kidnapping :
I you did not wear a normal chastity before the kidnapping you cannot complete the chastity training because you have the inverted cage and don't have the key to switch back to normal. Wearing any cage should complete the goal.
In the same way, if you did not buy the medium plug and the big dildo you cannot complete the plug and anal training goals. Owning the objects should complete the goals instead of the act of buying them.
Other bug : the permanent chastity idea resets instead of completing.