i don't know if it is an error or is the way the app works in IOS9/Iphone 6. There is no automatic syncs whilst the app is opened in the background, then I have to open it and wait for syncing. ¿Is that correct?
It should sync automatically if it sees a increasment of 1000 steps or more, or if there ar new activities. my start syncing the moment I open GCM from the background...
if u like to force a sync, u need to do it from the device.