Board Thread:Game Discussion/@comment-44591132-20191204203558/@comment-31567784-20191205091245

Sounds a bit like the cloud save issue what is based on a IPv6 problem. If you can, set your routing on your device for the cell side to IPv4 and give it a try. I suggest not to use WiFi as it depends if you have the option to change the network routing to IPv4 on your router. Using IPv4 on my device solved a number of these issues.