Firstly thanks for a great game. I've throughly enjoyed the story mode on challenging (level 11 was my wall) and am working towards dominating DMM currently.
Achievements are not unlocking as I complete them. As stated I have cleared the story mode already and I can guarantee I've accomplished Traveller, Gardener, Minefield, Intruder and Uplift at the very least. All achievements are still "?" according to my device.
I was hoping to use these achievements to add some playtime when I'm done with everything else.
I'm playing on a Nexus 7 2013 running Android 4.4.2.