I reply based on my exsperiences using other Arturia software.
If you could just continue your work at any opening with a demo version, then some perhaps would'nt buy the software.
If you just mean open in Home vs Advanced mode, then you can set that choice in the right panel even in the demo version.
You do know you have implied things are not working, even if you don't know - right? Based on what? A demo version of a single synth and without trying to find info first.
You can allways contact Arturia support.