If you are seeing errors related to your "save data update," such as a Cloud Progress Error Clear Cache : Go to your device settings and clear the cache for the Angry Birds 2
To move your save data to another phone or tablet, use the same cloud account:
: Progress on the Windows version is generally isolated and can only be synchronised with other Windows PCs. Common Troubleshooting for Save Issues If progress appears lost after an update, experts and the Rovio Help Center