Well, I think I will need a sample project from you, replicating the issue. Because I tested here on a new project, only Eli Book 6.1.2 and Class Curve 3.0.0, and it is working just fine.
Plugin parameters

Class note field

Actor in game

Your RPG Maker core files are updated to 1.10.0?
Upload to me a sample project somewhere and send me the link here so I can download and take a look



