Sometimes when zooming in & out a lot, the HUD from cities is completely wrong. Its as if my city shows the HUD of another, enemy city.
haven't tested with w yet, but before I've had it quite often. Its not easily reproducible, and happens very random but is a bit distracting. I've ignored it for weeks now and only just remembered it again 
the cloth map shows always the correct name. its only the HUD which gets confused.
It may happen more often when crossing the 3d/clothmap barrier a lot (zoom out, point to a city,zoom in, build something, zoom out again, repeat a lot). at least thats when I noticed it most often.
Ora