My app uses CoreData based on iOS 13.0 combined with iCloud to store data. This function automatically manages the data collaboration between CoreData and iCloud. Some users have reported that after going abroad, their original data disappeared, and when they returned to China, the data could be displayed normally again. I'm located in Mainland China. I've learned that iCloud data in China is all stored in Guizhou-Cloud Big Data (the data center in Guizhou). Could this problem be caused by display abnormalities resulting from the switching of the iCloud data storage centers accessed in different regions?
