Burst recurrence time vs. burst occurrence time, shown as red points. The range of the y-axis of the burst recurrence time is artificially limited to 0–10 h. The blue points represent the bolometric persistent flux (0.1–200.0 keV) obtained from joint Insight-HXMT and NICER data. The horizontal dashed lines are spaced 1.3 h apart. The black arrows represent the location of bursts presented in Bult et al. (2022c).