I am making a Xref layout of my facility with the references layouts being the individual areas that make up the building. I am having an issue with the reference files bringing in extra geometry that isn't found in their files, to the xref file. The geometry is random hatched boxes to the top and left of the layout model. When I perform zoom fit the hatch geometry does not appear so I cannot delete it in the reference file. I have ensured that all layers are on in my checks and that nothing is frozen, turned off or locked. Any help is appreciated. 

Thank you,