The same happens to me with "USA International (dead keys)" reappearing as the default while I only want "USA International (AltGr dead keys)". It has no effect to push the 'Apply System-Wide...' button.
The same happens to me with "USA International (dead keys)" reappearing as the default while I only want "USA International (AltGr dead keys)". It has no effect to push the 'Apply System-Wide...' button.