Challenges not updating

A couple of my challenges that I know of specifically a revive related challenge and the support's healing teammates for 5,000 have gotten stuck close to completion. I don't know why but my guess is that it may think it's complete for some reason. I would love for this to be fixed as I'm really loving the game and well if I can't progress my challenges I can't unlock stuff. Until it gets fixed I'm not sure if I can play as I don't know what challenges of mine are and aren't tracking at this point.