How do sync Asphalt 8 between two Windows 8.1 computers?

[WPCentral Question]

I was using my laptop, made progress, but then switched to using my desktop. When I started with the desktop I was given the option to sync my game, which was great (although I lost maybe 60K because the cloud wasn't that fresh). Now am back on laptop and have updated the game so it's the same version, but am not being asked to sync. Can I force it?