If you want to change chips, you must know, where files are located. If you use WindowsOS, path will be:
C:\Users\user_name\AppData\LocalLow\Sebastian Lague\Digital Logic Sim\SaveData
Then you can edit files. Better way to edit wrong chip is to make workable chip, copy it and then insert instead of not-workable chip. I hope, that i helped you. Good luck.