As shown in Figure 2, the scatter of the most recent minima times in the O−C diagrams is significant, including two eclipse times with larger errors, i.e., HJD 2455617.6460(± 0.003) and HJD 2455294.0144(± 0.0008). Why are some data points with lower errors still not fitted well? Since some A-type stars (i.e., Ap-type stars) have strong magnetic field, the scatter can be explained by the magnetic activity of the components during those time intervals.