vendor image problem

-- HikaShop version -- : 2.6.3
-- HikaMarket version -- : 1.7.0
-- Joomla version -- : 3.4.5
-- PHP version -- : 5.5
-- Error-message(debug-mod must be tuned on) -- : none

hi

i set the vendor image to 200px X 200px. Force size is yes. scale mode is inside.

the problem is the vendor image on the vendor page is force to 200 X 400.

if i turn off force size or force size is "no" its ok.

what should i do?

thanks