[Déjà Bru]

First, are you talking about changing the path to your game folders, as shown in the first screen print and explained in the second?

Because, no matter where you have your game folders located, the logos that you want the game to use must go into the logos folder as shown in the third screen print. Only if they are there (and file names match team names, including underscores for spaces) will the game use custom logos.

Else, the game reverts back to default logos every time it starts up. That Custom Data Path is just for changing the location of your game to some other folder than the default (My Documents, etc.).