I investigated `check_height_font_enumproc()` and it seems that the height calculations are correct, but a single font I have installed (`Emmentaler-Brace`) is returning `tmHeight` as 0 in `font_GetTextMetrics()`. Here is the backtrace: [emmentaler-backtrace.txt](/uploads/65d3cee47465cd151e63f4dbc50fe070/emmentaler-backtrace.txt). All other fonts are working.