How can I get the (video) activities of a user with the YouTube API v3 in Java

How can I get the (video) activities of a user with the YouTube API v3 in
Java

I am using Java to get the activities of an authenticated User (OAuth2.0).
The Problem is, I am not getting the result I want. If I am visiting
youtube.com and look at the activities
(http://www.youtube.com/feed/subscriptions) there are a lot of videos.
If I am fetching the videos with
YouTube.Activities.List request = youtube.activities().list("snippet");
request.setHome(true);
request.setMaxResults(50L);
I get videos that are more than 10 hours old, even if there were 10 new
videos in the last 2 hours. The feed I am getting is not very new... And I
am only getting 24 entries, even if the maximum setting is on 50. With the
old YouTube Api (v2) I am getting more than 100 responses.
Is this just buggy and not working, or am I making mistakes?
Thanks in advance! :)