We have discovered the following issue:
-(Corrected) The Private Match feature has been officially released and is available to all players, but the description text is still from the beta period.
-(Corrected) If an enemy is killed with the machinist's air gadget or shooting gadget, the results screen will not display and results will not be tallied appropriately, including progress towards challenges.
We apologize for the inconvenience, but thank you for your understanding.
We are working to fix this issue.