I am trying to change the placement of barline numbers globally (and individual parts). The settings were not changing any of the placement when I was using the Bravura font - changed to Academico font and then the settings took effect.
It seems like there are some issues with the Bravura font - but that is what the program defaulted to when I installed it.
My Full score is not showing barlines like my other parts - even though it is formatted to act the same way - trying to get the bar numbers that show up in write mode to be a bit larger so that I can see better.
You can change the frequency, position etc of bar numbers in each layout in Layout Options, where you can also change which paragraph style each layout uses for bar numbers (eg in a film-style template, you might want big and bold bar numbers on every bar in the score, but italic bar numbers once per system or small plain bar numbers on every barline in the parts).
Showing bar numbers every bar is a per-layout setting. Meaning, if you only had the score selected on the right when you changed this option, then you only changed it for the score.
Go back to the Layout Options dialog, and select all the parts on the right, then you can show bar numbers on every bar in all the parts in one go.
Are you sure you are changing the Score bar number paragraph style and then observing Score measure numbers rather than changing (say) the Score paragraph style but looking at the parts?
Can you post a(n excerpted) Dorico file that demonstrates the problem?