Layers appearing out of order
Good morning,
Before I joined my company, they had a design firm create a logo for them. The logo is a chevron composed of two grey bars at the bottom with red and black overlay, pictured below.

However, we are having issues when sending to printers that the layers seem to appear out of order. The printers are given the .ai file and the .eps files created by the design firm. It particularly appears wrong in Firefox, but I cannot imagine someone is printing our logo via web browser for building signage. I had no hand in the creation process, and have never encountered this problem in Illustrator, so I am at a loss. Below are the layers and an example of a butchered building sign. Any help would be appreciated.

