Guys... I really want to use gantries but they seems to be reverted once I launch. They go opposite side.
http://imgur.com/a/kNG4e
I set the startin position of a gantry as 4 at VAB. Then when I launch, it shows as 4 -so far so good- but then when I try to move it, it starts moving other side. I can't make it work. Is this a known bug or something? Is there any workaround?