Fontspec, tocloft and bfseries weird result

Question

I am using tocloft and fontspec to reformat a table of contents.

I have this code:

\newfontface\Verdana{Verdana1}[
   Path=fonts/,
   Extension=.ttf,
   BoldFont=Verdana1b,
   BoldFeatures={SmallCapsFont={Verdana1b}}
]
\usepackage[titles]{tocloft}
\renewcommand\cftchapfont{\normalfont\fontsize{10}{12}\Verdana\selectfont\sc\bfseries\expandafter}

This is the result. Note the size of the chapter number, vs the size of the page number.

If in the other hand, I switch\bfseries to \bf I get only a bold text with correct chapter number size; and if I use only \sc I also get a correct chapter number size, but not bold.

I have a solu^whack working:

% THESE TWO LINES HAVE A TWISTED HACK
\renewcommand\cftchappresnum{\fontsize{17}{12}\selectfont}
\renewcommand\cftchapaftersnum{\fontsize{10}{12}\selectfont.}

But then, it looks acceptable.

If you have any idea why this happen, and how to fix it, I am welcome.

Answer 1

As David Carlisle pointed out, \sc was ignoring the font family. Using \scshape needs a font with that feature, a thing I did using FontForge.

My main issue was the way to configure correctly the fontface. This is the result that is working for me:

\newfontface\Verdana{Verdana1}[
   Path=fonts/,
   Extension=.ttf,
   BoldFont=Verdana1b,
   BoldFeatures = {Letters=SmallCaps},
]
\usepackage[titles]{tocloft}
\renewcommand\cftchapfont{\normalfont\fontsize{10}{12}\Verdana\selectfont\bfseries\scshape\expandafter}

So, Verdana1b.ttf has the bold font with small caps, but it seems that if I do not specify in its features the existence of SmallCaps, it will not be loaded.