QHY12 one shot color CCD takes only mono subs

Hi there,
I just got used (4yrs) but QHY company refurbished QHY12 one color shot CCD camera. They fully tested before shipping back. I did take few subs running it with SGpro, but it took all the subs in monochrome setting(if there is anything like that). I did try run it with EZcap original software and than shows a color subs. Any idea what could be set wrong or what to do? Thanks!