Array Modifier Causing Objects To Become Hollow in Blender 2.8 I am new to blender and trying to model out this grid object, then trying to cut a bevel into the side with a boolean modifier. The problem I'm having (which I cannot find an answer to anywhere online) is after using the array modifier the object suddenly is hollow.

I've included this .blend and in it you can see the object before the array with the boolean cut perfectly removed, still keeping the faces of the object and not being hollow. 

Like this:


The arrayed object, however, has no faces where the cut has happened and is also causing weird distortions on each corner where the boolean modifier overlaps.

Like such:


Any suggestions or knowledge would be much appreciated! Also, if you have any suggestions to a better way to accomplish what I'm after I'm open to that too, thanks!
The first thing I notice is you have a lot of overlapping geometry, there will always be distortions when faces occupy the same space, this is aslo probably why your boolean modifier isn't behaving as it should.

Hope this helps