hey bro can you elaborate more? I'm having this issue and I can't change the difficulty of the stages I cleared since I need to buy the "difficulty up" thing.
Don't know how else to explain. Simply put, just try completing a different level if you encounter the bug. After you finish that level you should be able to modify the difficulty again.
Don't know how else to explain. Simply put, just try completing a different level if you encounter the bug. After you finish that level you should be able to modify the difficulty again.