If all layers are turned on - in Artlantis's own View Inspector (not ArchiCAD) - then your Artlantis cameras for perspectives and panoramas are not aimed at the model.
Open the 2D window in Artlantis. I recommend you always keep this window open. Click the button to zoom out to show the entire model and camera. Drag the camera there so that it is aimed at the model from the top view. In one or more side views, make sure that it is aimed at the model there, too.
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I'm moving this to the Presentation/Rendering forum ... but in general, your question has only to do with Artlantis and not ArchiCAD, so you might want to ask further question on the Artlantis forums here:
http://www.artlantis.com/index.php?page=support/forum/index
One of the forum moderators
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