Here is a minor bug in the Waypoints in Act 5 - they are not in the order that you find them. If you follow the story arcs, you will find the Halls of Pain before you find the Glacial Trail. The list in-game is Glacial Trail before Halls of Pain.
It could be that the Glacial Trail waypoint is just outside the Crystalline Passage, but I found the Frozen River before I found the Crystalline Passage.