The screen load is intended because chapters are tied to game saves, there is a plugin parameter you can use that says "Load latest save", this should skip the load scene and automatically load the latest save if one exists. As for your error, that is new to me, I will take a look at this for the next update.
Viewing post in Error with Chapter Select Plugin
Okay, thank you! I almost have it working now, using the beta version! The menu appears and when I click on a chapter it teleports and everything...only if I press the 'back' button or try to exit out, I get the same message;
TypeError
$gameMap.encounterList is not a function or its return value is not iterable.
I've also noticed that the above error changes depending on what plugins are on. Like when VS Battle Core is on, the error becomes;
SyntaxError
Unexpected token u in JSON at position 0
So I'm really not sure what could be going on, but I hope it helps!