All i-band light curves (CQUEAN in rosa and ProEM in blue) are binned to 2 minutes and phase-folded to the 9.937 hr period reported by Z. P. Vanderbosch et al. (2021). The cycle number that has passed since the reference time BJD_TBD 2459141.504938 (Z. P. Vanderbosch et al. 2021) is labeled on the right y-axis. Each light curve is vertically shifted for comparison and labeled by its corresponding date.