unlockAchievement() in Google Play Games is silently failing for me sometimes. It tends to fail when I call it just after signing (when there's a backlog of achievements and a user signs in).
Unfortunately I have no proof. I'm just running my game (after reseting my achievements) and on occasion it fails. I have system outs just before the call to unlockAchievement() - so I know it's getting called.
Just wondering if anybody else is experiencing this?
Thanks