GregValiant

Thanks for the report. We need a project file (File | Save Project) to troubleshoot this. I downloaded the model and didn't have any trouble slicing it. 

Thanks for the report. This sliced for me on the first try so I can't duplicate the problem.  There have been several bug reports (that are confirmed slicing issues)...

Thanks for the report. There have been many reports of this behavior so I will mark this as a duplicate. A workaround for this bug is to move the model...

Thanks for the report. Did you get this view in the Cura Preview stage?  All those purple areas are errors in the model. This is the view in Mesh...

Than for the report. This is a duplicate of several other reports where models with no errors in them won't slice. There is a workaround that sometimes can fool the...

@derekantrican thanks for the report. @druckgott thanks for the analysis. Here is my 2 cents. Up until the point that you release the pressure wheel of the extruder, Cura knows...

Thanks for the report. In order to have the setting available you must have "Generate Support" checked and you must use "Normal" supports. "Conical" is hidden and disabled if you...

Thanks for the report. When I slice your 3mf file (thanks for that) that layer is full so I'm not able to reproduce the problem.  Could you post a...

Since it's resolved can we close this ticket?

Have you looked at "Gradual Infill Steps"? It will start out at low density and build up as it gets near the roof so the roof is well supported. "Gradual...