Hmm, when you run the demo at https://casper-gaming.itch.io/cgmz-title-system it should show events on the title screen, including tint screen, weather, etc. Do you have a specific event command you are trying to run that isn't working? Not all of them will work, for example battle processing or battle event commands.
To fix the other plugin, you can add this to its code at the top of the js file:
Scene_Title.prototype.create = function() {
Scene_Base.prototype.create.call(this);
this.createBackground();
this.createWindowLayer();
this.createCommandWindow();
};
The issue is it is calling createForeground twice, once in the original scene title function and a second time after the map is loaded for some reason, which is where the buttons get created, so it was causing my plugin to create the buttons and everything else twice. So, technically, you were clicking the button twice because you were clicking both buttons. It seems to work for me when I remove one of these calls, not really sure why the author of the other plugin calls it twice.