Board Thread:Questions and Answers/@comment-33829210-20171201133736/@comment-33829210-20171201163445

Update:

Good news / bad news:

Good news:

I tried it on my own devices (iPad and iPhone) with a fresh new installation and using Game Center. It works then and when I make progress and gain things in one installation, close that game and open it on the other, I get the choice between using the 'Online' or 'Local' profile. Choosing online works grand for me, to and fro, and does what they want.

Bad news:

They tried the same, but with the difference that they've been playing the game for a long time on the iPad (level 182, I think?). For them, the data displayed for 'online' on the iPhone is all wrong: too low. That is what they get through Game Center. It seems their game is logged in to FB too. If they choose 'local' instead of online (in a fresh new installation) and then try to log into the same FB account on their iPhone, they a 'synchronization error', that says: 'unable to synchronize data within the server.'

I assume the iPad to have saved the progress to FB (and earlier to GC). Can they somehow fix this, or perhaps force their iPad installation to store ALL their data to Game Center (too)?

It seems this is the only missing step for them: to make sure everything is saved to either (or both) and then picked up correctly on the iPhone, either through FB or GC, or both...