W-values rules - sometimes don't work

I'm using "theme-grid pages" in the Type of "style" on my "settings" tab.

I have a page (field-list set to w4 (my issue occurs whether I allow the 4 column default or if I explicitly set it to w4).

As I work through the groups it seems that w-value stops applying and everything is seen as w1 or smaller.

Any idea why this happening?

Could you attach your form?
Are you sure you read through:
https://xlsform.org/en/#grid-theme-forms
https://blog.enketo.org/gorgeous-grid/

There is no need to use field-list appearance.