I just tested it and its working.
I will try to guide you step by step
- You need to acquire the Supreme Schism Mold.
- Go tot he Conversion Executor
- Click on Quest Related
- Once done talking, click again Quest Related
[li]Speak with Conversion Executor once again and choose the option to switch cultivation[/li]
[li]In the new window click in the Advance Cultivation button[/li]
[/list]
That's all you need to do.