Sorry for the troubles! Upgrading works fine in China as well. I assume you got the latest launcher from your license page and re-installed it? If that still does not work, could you send me your spine.log file? You can find it here:
Windows: <user home folder>\Spine\spine.log
Mac: <user home folder>/Library/Application Support/Spine/spine.log
Linux: <user home folder>/.spine/spine.log