Hi Guys, Does anyone here have any experience with posting scores to a leaderboard with Google play services? I have read the GM manual and followed the following 'tutorials' but the scores won't post when testing with an Android device. http://www.fm-studio.net/blog/gmstudio-add-google-play-games-2-new/ https://medium.com/@polltery/quick-setup-of-google-play-services-in-game-maker-6d92034aa548 achievement_available() returns true. achievement_login() is in my create event. and am trying to post a score of 100 as a test like so; Code: if (achievement_available()) achievement_post_score("CgkI.....etc", 100); I have enabled Google Play Services and added the application ID and the Keystore information is all correct in 'Preferences'. At this stage no scores are being registered in he Google Play Dashboard. Any advice would be appreciated.  Game is 100% ready for launch. This is the only thing holding the release back.