Fred Cheng (鄭俊弘) expressed he had completed the re-shooting for Forensic Heroes IV (法證先鋒IV) drama at an activity (2019勁歌金曲優秀選第一回) on 17th June 2019. He praised Roxanne Tong (湯洛雯) was in good condition and had lost weight. She even forgo her meals in order to maintain her figure and asking if he believed Roxanne could break the “gaining weight spell”, Fred said: “We did discuss about the reason and I told her that her fats stays inside her body, as she refuses to eat. Hence, I urge her to eat something and she needs energy to work too.”