I started Emacs like this:

emacs -fn -misc-fixed-medium-r-normal--20-200-75-75-c-100-iso10646-1

The result screenshot will demonstrate the problem, which is that
-Misc-Fixed-Medium-R-Normal--20-200-75-75-C-100-ISO10646-1 is said to be
used but the visuals are inconsistent in height and other font
properties.  Compare the '#include' to 'stdexcept' or look anywhere in
the screenshot to see other examples of inconsistent properties.

C-u C-x = on the "good" and "bad" characters ('#' and 's' in the first
line of the screenshot) produce the information at the end, which I also
included in the screenshot.

This was supposed to be addressed by the new font backend, so I hope
it's fixable.

Thanks
Ted