For years I worked with a government agency. I provided geographic information systems (GIS) services. I mostly did data processing and modeling, but also did occasional cartographic work.
For one large project we worked with a design agency to produce a booklet that featured two maps. I had worked on the project for years, so it made sense that I would design the maps. No one ever provided me with sizes, so I eventually guessed and provided the designer with PDFs of the maps.
When I received the proofs, my maps have been ripped apart. The designer reworked them to be different sizes, breaking numerous cartographic principles and mangling my designs. I redesigned my maps to fit the new dimension requirements and sent them the new files.
They sent back proof 2. Once again my maps had been reworked to breaking
Me: Why did you change the maps again?
Designer: Here are all our internal design rules your maps violated.
He provided a list.
Me: Well here are all the cartographic design rules that you are breaking. These maps need to function as maps. I know we have different design philosophies but my name is attached as cartographer and I can't produce substandard work.
This goes back and forth until it's decided to do a blind survey to see which versions people preferred. My designs were the clear winner.
After that, they (mostly) left my map designs alone.
The designer totally ignored me after this. I never received any further proofs directly from the designer and had to have them forwarded to me from colleges. The designer also never corrected a spelling error that I pointed out in the booklet.