This should be a simple one (I remember I have it done in past versions): two tasks (A and B), each with 4 hours duration and effort; task B depends on task A be completed to be started. Such scenario should display both tasks inside same 8 hours day, but it only displays each one in a different day. Any clues?
Just as an experiment, can you try shortening the second task and incrementally increasing it to see when the problem begins? Perhaps there is something requiring margin between tasks or some other setting affecting the schedule?
