blizzrd
Micromanager
Fairly sure it is a bug rather than something I am just misunderstanding, but the first UHV goal in my Germany game didn't trigger properly. Note: I am using version 3.15
I controlled all of Greece, Rome (and the rest of Italy), and France in 1870 as required.
Notably, I only owned two of the four cities in France, as the other two were owned by Vichy France (my vassal, obviously). Also, it was a 600 AD game, so Rome and Greece never specifically existed as nations, but I still controlled the area.
Just in case it helps you diagnose the problem, I have attached a save file from shortly before the 1870 cut-off.
Actually, it's a misunderstanding in this case. If you are asked to control an area for the UHV (not just Germany, but also others), don't capitulate the civ which spawns in the particular area.
For control, you must own more cities than the "native" civ (in this case France) does within the area indicated in the RFC atlas. As you failed to own more cities than the native civ, (two German cities and France owns two cities), you failed the UHV criterion.
The fact that France is your vassal has no effect on the UHV criterion.