Simplify3D User Forum

Good morning,
Imported a largeish mesh. When using the mouse to spin the viewport the model spins in the opposite direction of the printer bed.
I can provide the model if desired for reproducing the error.
I believe the issue is inverted normals on the source

Version 4.0.0.

I've verified this. If the normals are inverted the display gets very strange.

I'm pretty sure that is intentional. The normals need to be correct for the model to print correctly, so they probably want to highlight this in the 3D view if there are problems.