Fix A Bug

Admin, there was a bug that needed to be fixed: When you wanted to delete a note, you had to delete the one that was below, and could not change really the note when you’ve already putted a note and wanted to change its duration, but had to press the cancel button.
What’s the bug? Please fix it for me?

Resize the window ;D and there’s no bug then :D

Thanks Luchoo! :)