Comment 3 for bug 885937

I tried your given steps as well and the issue did not happen in my case as well, here is what I did.

1. closed and removed all pined app launchers.
2. dragged 5 app launchers from the dash to the launcher
3. launched two no-pinned apps

they appeared below my fifth pinned app icon as they should.

Could you test the very same in a guest session and see if it happens there or verify if I missed something in the steps to reproduce the problem so that we could get the issue looked at.