How do edit and save a template?

Hiya all,
I’m trying to edit my own template and save it, some attributes are saving some are not, I really don’t get what I am doing wrong.

Any help would be greatly appreciated.

The trouble I’m having is saving Level 1,2 and 3 and Rows font size, its default is 26, I want to change it to 40, it keeps re-setting to 26 when I change it to 40.

Going off these screenshots, one issue is that the Whole Document font size set to 40. The way things currently work, redundant styles can’t be set. So when you change your level styles to be 40, it ignores that and falls back on the Whole Document style because that’s already set to 40. However, I don’t know why it would be changing back to 26. Does it work correctly if you try changing to 39 instead?