The discussion was about one scene - PRG060. This issue only happens in case if you had a different size set via Debug mode than size 4 aka the size on which this scene should have been played
But it's also worth to note that changing sizes in Debug mode instead of having them progressing naturally through experiencing the story and just playing scenes can lead to errors like one mentioned by the OP as not every size will have the same outfits as their appearance can sometimes by specific to scenes where they're supposed to appear