It seams only happens when ass is on
How to reproduce?
1. ./mplayer -ass -font ~/Library/Fonts/msyh.ttf -quiet -slave -sub-fuzziness 1
{the movie path}
2. with the slave mode, type
set_property sub_scale 3
3. sub_load "the sub path"
the subs could be loaded correctly,
but the sub size are not the same with the "sub_load" sub and pre-load sub.
if ass is off, it seams all right.
