This is a Bug with this specific version of RPG Maker. I have a solution for it. You need Notepad++ and need to open the rpg_core.js File under Subject-Jane-0.6.1Release/www/js. Then open the File with Notepad++, use the search option and type in "skipCount === 0" under "search for:". Hit the Search Button and it brings you to this Section of the Code. Exchange the "===" with "<" and save the file like that in Notepad++. This should stop the freezing. I dont know why that happens. It started a few Years ago for me. But this works just fine. I allways do that first before i play an RPG Maker Game. If you want to play a RPG Maker Game that does not have such ar Core.js File in this Folder, than you dont need to do anything.