Watch app unreliable – Map My Fitness by Under Armour Review

Twice now my Apple Watch Map my Whatever app has failed me. It apparently has a bug. The app will load and then 2 seconds later it reverts back to the choose an app screen. Unfortunately this time it was after 3 days of hiking with no cell service so I lost the unsynced work outs. Come on UnderArmor, get this fixed!
Review by Sheptones on Map My Fitness by Under Armour.