I have recently started using Distill, and I love it! One typographical oddity I have noticed is that Distill (or something in the knitting tool chain) produces a blank space between the footnote symbol and the preceding character. So
A word^[with a footnote] that needs explanation.
will be rendered as
A word 1 that needs explanation
A word1 that needs explanation
This seems like a bug (or unusual typographic choice)?