TTFautohint - settings

I’m using TTFautohint to hint my characters.
I have a line which is right on the edge of the space (at Win Ascent).
When I hint the font file, in some characters it shows and in others it doesn’t.

Do you know which setting in TTFautohint I have to adjust to make it so that I can see everything.

I do not think there is such setting. It might work to slightly increase the Win Ascent value.

OK thanks anyway.