I walked 10km and then the game glitched and I had to close the app and when I reopened it my egg was gone and I didnt have any new Pokemon. The same thing happened with my 2km egg but all I really care about it my 10km egg. I like the game but until I get my Pokemon for walking my 10km Im rating it 1 star.
Maricawat about Pokémon GO, v1.39.0