by Howard Miller.
The "Great Firewall of China" which is presumably making connections from China so bad that they need a local Moodle will also break just about anything else you try. I have seen the same issue many times now. Personally, I would leave them to their own internet misery but business is business. You just need to backup the courses send the backups to China (slowly) and restore them there. I'm not aware of an elegant answer.