Some large displays have knock-down creases in order to fold up smaller for shipping. ArtiosCAD can't handle both knock-down creases and the normal creases at the same time in 3D; you get extra panels where the crease cross.
We recommend that you change the knock-down creases to Indent only, so that they don't interfere with folding the normal creases.
Select the knock-down creases.
Change them to Indent only.
Convert to 3D.
Fold the design, observe that the knock-down creases cannot be folded.