Please see how to report bugs, can you provide more information about this problem? Typically orientation lock is set in the CocoonJS launcher, which implies if it's not working then Ludei need to fix it, not us.
Orientation is set in CocoonJs Cloud and also was working with the last beta of Construct 2. I changed nothing. And the build will build with xcode... etc. I will try to provide a sample .capx and send Ludei a email too.