Impossible to diagnose the problem from the information provided but as you say everything behaves as expected in Capture then the problem must be with the actual setup in your venue surely? Could be any number of things between your console and the fixtures...
Is it always the same fixture which points in the wrong direction?
If one fixture appears to be doing the same as another, then check they are not at the same address.
Are you really sure all the fixtures are hanging facing the same way? Are you sure none of them have pan or tilt inverted on the fixture itself... ie do you need to invert pan or tilt, swap pan/tilt on the desk.
Of course it could be something as simple as a faulty fixture, not calibrating pan or tilt properly
Disregarding anything you have programmed using Capture, do all fixtures behave as expected when you simply locate and move them around?