Revit Hatch Mirror Bug

I have filed a Defect case with Autodesk regarding this issue and I recommend you do the same. I'm hoping they will fix this in the next update. I will welcome any workarounds that you have found on top of the one that I have offered.

Fill Patterns (Hatch) do not mirror correctly. Below is an image of a Ceiling, mirrored. It contains a Model Pattern which rotated when the Ceiling was mirrored. Making a Group of the ceiling seems to help. That being said I just witnessed a client's Fill Pattern rotate to some odd angle when mirrored.

Below is an image of a simple Filled Region mirrored. Should it not be bookmatched? Yes, it should but you can't do it.

Another Visibility Issue: View Range not Affecting Structural Slabs

Autodesk Revit Development team, please fix this bug. Okay maybe it's not exactly a 'bug' but it is a feature which causes confusion and delay.



Model elements located outside of the view range generally are not shown in the view. The exceptions are floors, stairs, ramps, and components that stay or are mounted on the floor (like furniture). These are shown even when slightly below the view range.
Slab edges are shown when their bottoms are within a tolerance of the primary view range bottom.

Foundation slabs and structural floors located outside the view range use an adjusted range that is 4 feet (approximately 1.22 meters) below the bottom of the primary range.Floors are drawn with the Beyond line style if the floor exists within this adjusted range. 

Here's the credit: http://forums.augi.com/showthread.php?137848-Slab-showing-when-below-View-Depth