Improve DataObserver reference holding

I'm trying to use obervable queries to detect when the user is logged in my application in order to start fetching data in background with correct authorization token.

    ...
    userBox.query().build().subscribe().observe(users -> fetchUserData());
    ...
    boxStore.subscribe(User.class).observe(class -> fetchUserData());

First "live" query doesn't work whilst the second works fine whenever I put(user) a new user in the userBox.

Is this correct? I'm not sure from which thread the user is being inserted, might this be an issue?
Does it make sense to use a "live" query to observe the insertion of new objects or is it just for changes in existing objects?
Live queries would be great, for my application and are the main feature that made me pick ObjectBox, hope I can get it working.

Start by tracing DataObserver and the live-query subscription paths described in the report, then compare them with boxStore.subscribe(User.class). Check how query references are held and which thread handles inserts. Done means the live query reliably observes newly inserted users, with behavior clarified or covered by an appropriate test.