We have now updated the game in steam to fix the issues. Turns out the ending errors are due to our fix for another bug when triggering the Date chapter in Doll. Hence not triggering the other two endings properly. We have updated the game in steam (and updating here as well) to fix these issues.
Thank you for pointing those out . So sorry for your inconvenience > <
Replaying the Trauma chapter and Mate/More chapter should fix the issues. Also check the Date chapter when Doll/Angel are dating will now trigger a cleaner event, previously we had some texts overlay or in the wrong position.
So sorry about everything and all your troubles :'(