I had a situation where i reloaded my game, Cass was owner of the massage table and was maybe just about or alreayd getting a massage when the night started. The massage table started the animation but Cass already went to bed instead, leaving it empty
Steps to Reproduce
have a game with a dupe on massagetable just before bed time, save, reload, and hope you got the timing right, night needs to hit almost straight away
This issue has not been confirmed by a developer yet.