Police clearance less 6 month - requested

I spend 1 year in hong kong. However, my single consecutive stays were from 30 - 80 days each. I have frequent multiple 3- 5 days trips abroad, so I didn’t consecutively stay over 6 months.

I spend 1 year in Korea with a similar pattern, only my trips abroad were more than 7 days,

I m confused, the system it didn’t ask my police clearance for Korea… why the system ask for HK police clearance?