Can't delete the chapter.

So, I don’t know if I should say something about this, but since it became a problem, then I want to report that the delete option is failed and not working on mine, no matter how many times I delete my chapter, so I decided to report the issue here, just in case as feedback.

Is there something wrong with Tales? Or is it just happened in my computer only? Because for these past few days, I encounter some problems like glitch in loading my character too. Will they fix or update to help with these problems soon? Just asking for my own curiosity if someone knows the answer that can help clear things up.