The last 2 days I would jump into the rift at Owl Head and go to Solace Bridge without any problems and be able to return. Today after a few hours I jumped into the rift and found myself in Blood River. Jumping back took me to Isle of Storms. I realized on my last trip if I hovered the cursor over the rift it would tell me where it was headed. What I don't know is how often the schedule changes or if there is a way to make it change?