Ahh, that makes sense. I was flailing a bit to remember which episodes the break-ins happened in.

Other masks:

• pretty sure Zheng Yi wears a mask at some point
• I think Zhang Danni wore a mask in her origin-story flashbacks?
• we see Wu Tian'en in the streets of Dixing in his pig mask (but that starts in the bar)
• does Zhao Yunlan wearing An Bai's face (when they're catching the Deacon out) count?