When playing in the previewer you have to keep making the choice of which outfit you want if you really want the character to wear it while you preview the story, otherwise the previewer will just put what it wants (I know that is not really like this but I still haven’t figured how it chooses clothes lmao)
So if you keep switching back and forth through the scenes it does that, but if you play the episode from the beginning to the end it should be fine