Try to switch off display of interiors and thicknesses on ALL VIEWERS (mind that for the building model the viewer has got TWO tabs) including the additional ones you opened.
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Please make sure you switched off display of these attributes on ALL viewers. I have tested this on my computer before posting the answer to check it works. Please send me the screen capture that shows how your screen (in Robot) looks like just before trying to run copying.
See the movie
Before opening the Display dialog I pressed the default display button to make sure that I have the control over the settings you made in the file.