get_post can return only 22 post from group

[hoangv-karo]

Some group i can only get post from page 1, i browse mbasic version of group and also see nothing after click "See more posts" button.
Example: https://mbasic.facebook.com/groups/batdongsanhannoi.edu.vn/

Does anyone run into the same problem?

Thanks and regards.

[YuQuan]

same here. no matter private or public group, only return 21 posts.

update:
I got it, you can try mbasic.

[hoangv-karo]

same here. no matter private or public group, only return 21 posts.

update: I got it, you can try mbasic.

@RussQuan : Have you solved this issue?