Hi Daventry,
Thank you for your help.
You managed to align the lines of the chapters and there are the subtitles in videos.
But there is this problem of the chapter lines going down. When you first go to the chapter menu, the lines are aligned. You go a second time (or +), the lines of the chapters go down.
Screenshot:
On the left, the lines are aligned when you go to the chapter menu for the first time.
On the right, the lines are no longer aligned when you go to the chapter menu for the second time (or +).
The lines go down each time when you go to the chapter menu.