composite fonts not working since upgrade to new version

I had set up couple composite fonts （複合字體） in Ai and it used to go pretty well until Creative Cloud automatically upgrade new version, all the composite fonts became lost fonts.

I tried to add new composite fonts, the application would shut down immediately.

I also tried to downgrade to the previous version, the function still broken, wouldn't let create my own composite fonts. 

Does anyone face the same issue as me?

Please help...