Text stagger animation not working

Hi!

I have been following this tutorial and pasted the code and custom attributes in the designer: https://www.youtube.com/watch?v=-QO-YUDzvyI

However, the animation does not work. It worked for the first chapter, but if I add the attributes to the others, the letters get all mixed up and / or the animation is not working.

Here is the site currently: simple

I’m not too familiar with custom attributes – so would appreciate any help!

Näyttökuva 2023-11-27 kello 20.38.05