I just got Discworld 1 and 2 and the problem appears on both games. I managed to get the games working again, giving ScummVM the permissions for my games' folders. And the savegame location is still the default value. I haven't changed it since the installation of ScummVM.
Using the game's own save feature (using the virtual keyboard, typing "1" and saving the game from the game's own menu) works just fine. But as you can see in the screenshot, the save button is missing entirely from the ScummVM in-game menu.
What went wrong?
![Confused :?](./images/smilies/icon_confused.gif)