@Adrien:
- issue exists in 32bits and 64bits modes (I was using 32 bits initially but just tried the 64bits version and same issue)
- there is no such issue with Logic 9.
To describe further the issue: the extra panel is not totally unfunctional, we can turn on/off the various pages (overdrive, chorus...) by clicking the on/off button, we can edit the graph in the Keyboard Follow page, but it seems the animation used to switch pages is not working, so we cannot open the Chorus page for example (same for any other page not open by default)