Error in reporting of HOYs when using HB Annual Peak Values

I came across a problem when HB Annual Peak Values is supposed to report the resulting HOYs.

The analysis itself is made for the entire year with HB Annual Irradiance. The HB Wea From EPW is set with hoys for the entire year:

The result is analyzed for peak values with HB Annual Peak Values to find the days for a set of rooms with the highest radiation:

However, if I plug a subset of HOYs finto HB Annual Peak Values in order to only find the peaks of a that subset, the hoys output from HB Annual Peak Values seems to report the incorrect HOYs (they should all be from 25 May):

edit: the calculated values of the subset are correct! Only hoys are incorrect.