Where's the actual chapter 35? The one listed is chapter 21

The "anime spain movie spin off" is actually chapter 35. I don't know why it's labeled as something else. I was hoping that when I uploaded chapter 36, the previous one that for some, God only knows reason, that was a copy would disappear. But no. If there's anyway to clean up the manga chapters, I will but I've been looking and there's no useful information. First thing I need to do is find a way to delete the random re-uploaded chapters.

I see. Thanks for the explanation!