Disable Masters results in "master outside of interpolation rage" (sic) error

Hello, I am trying (once again) to export variable font subsets by utilising the Disable Masters custom parameter. I have four masters, on two axes (weight and width). My width axis goes from 1 to 100, weight from 60 to 168. For one, I get this error when trying to export variable fonts with the masters at width=100 disabled:


Additionally, when I export a variable font with the width=1 masters disabled, the variable font is still exported with these masters, and thus not as a subset.

What is going on?

My bad, a master name had a trailing space.
Some other stuff still doesn’t work, though: