Hi Alex,
There is a bug right now, which we corrected for the next version, but have not released yet. When it's working, bearing should point in your direction of travel.
By the way, as a workaround for now, you can tap the crosshairs button twice to use track-up mode, which isn't bugged. This article will explain a bit more:
http://help.gaiagps.com/knowledgebase/articles/175049-locate-and-follow-yourself-on-the-mapRegards,
Ashli Baldwin
Adventure Support