Simplify3D User Forum

Hi,
I have 3 models of a fence trying to slice in Simplify3D. After many failed prints I look at the preview of gcode before saving and see why the print fails.
Why are there pieces missing? More important how do I slice this properly? No setting I've change will make the pieces appear. STL file attached.

When opening the file it is laying down. If you slice it while the object is laying down there is no missing pieces. Rotate -90 on X and it stands up, missing pieves. Ver 4.1.2

Use the Separate Connected Surfaces on the mesh menu. That will make the fence slice correctly.

Nothing to do with v4.1.2 or any version.....

OK that made it slice properly. Thank you. Not sure why that works... ?