hi

we've faced with some unexpected behavior when fetching comments from a post:

GET /<POST_ID>/comments?since=2019-11-01 returns a list of comments with created_time in range of 2019-11-01 -- 2019-12-06

but

GET /<POST_ID>/comments?since=2019-11-02 returns no comments (and same for any date after 2019-11-01)

Last friday (6 Dec 2019) last value of since param for which the comments were returned was 2019-11-05, now it is 2019-11-01.

The post is public (is_published = true), api versions tried: 3.3, 4.0, 5.0, access tokens tried: page admin's, page's

What's going on?