Pro tip when making fanfics
Please don't try to publish a chapter that has no connection to the story
I've been seeing some fanfics upload a thank you chapter and that just made the chapter catalogue dirty
If you want to share your appreciation, just leave a small header note or the footnote of the story. It's way cleaner that way.
Note: I also did that previously until I finally decided to share the appreciation instead on the story to keep the chapter catalogue clean.