Conditional Fields in Panels 3 Node add/edit form are not hidden

I've redesigned my whole site, using Panels 3; because I use a lot of arguments.
Now everything is ready and I'm setting up my content types.

I noticed that, when I'm using the default "Node add/edit form", which comes along with panels 3, the untriggered conditional fields are not hidden.
It's not that they don't work, because if a mandantory untriggered conditional field is not filled in, there's no error message that the field must be filled in. So the problem only is that the untriggered fields are not hidden.

When I disable the "Node add/edit form" in panels and edit or create a new content outside panels, every conditional fields works fine.

Does someone have any experience on this or know how to fix this?

I'm using:
Drupal core 6.14
Panels 3 6.x-3.0
CCK 6.x-3.x-dev (2009-sep-23)
Contidional Fields 6.x-1.0-beta2

Thanks.