Calculated values on char sheet not showing

I'm working on a custom character sheet and cannot get the calculated values to work, they always show up as empty strings.

In this very simple version of a character sheet, I have a str 18 attribute and a dungeon world version of the strength modifier. I've tried several variations for the formula, but no iterations are working.

I copied your text into a sheet and it worked for me. Are you working in a sheet or in a post? Formulas won't work in a post and will be left blank (even if they are wrapped in a charsheet tag), but in an actual character sheet they should work.

When I create a character using that, all three seem to work. Are you creating a character and editing there, or trying to make it work inside the [ charsheet ] code?

I was looking at the post. That's 100% what it was. Thank you!