Version 1.17-win64-public
After entering the cafe by accident, I exited the cafe and went to the nude beach, and Kelly was initially shown in her work outfit before I switched to her bikini. When I left the beach and went home she was still in her work outfit instead of her usual white tank top. On top of that the game seems to have "forgotten" some of my recent progress, I have the ability to buy the red lingerie again despite still having it, and magic wand isn't appearing in the store anymore, nor is the option to use it with the schoolgirl cosplay. Also the champagne bottle disappeared from the store.
Not sure if it makes a difference but I had just completed all of the events so far when this issue occured.