$width(text,font,size,B,C)

If someone uses a non-numeric B parameter, it's causing both B and C parameter to be treated as if zero. Possibly related to

34.Extended $width() to support $true/$false parameters.

Code:
//var %a G $+ $chr(22) | echo -a $width(%a,Consolas,16,B,0) same as $width(%a,Consolas,16,B,1)