Wrong response when querying database rollup field with ascending/descending sort

[S-A-M-J]

When querying a notion database based on a sort ascending/descending of rollup field the response is not sorted in any way, meaning the ascending/descending sort did not work. Moreover querying ascending and descending result in the same response. However when i query a normal number field the sorts do work. Furthermore this query worked 2 months ago and has to have broken in the meantime.

Relevant query code file.txt