There is a stretch along the shore of the lake in Jadestone Village where characters will rubberband back when trying to walkthrough, trying to fly over it will result in falling down in some areas of it resulting in being trapped in a constant fall. I tested this with a few other people to make sure that it isn't just my client that is bugged.
Area that is affected: https://imgur.com/a/Tl5AMPe
Video showing bug: https://youtu.be/-nGAse9hHhg