When creating a new faction, and first selecting a weakness, then going to strengths, picking 3 strenghts, switching back to weaknesses the one previously selected is not highlighted anymore (selection points however remain at 0). This weakness can also not be selected/deselected anymore. However, when clicking on another weakness, both the already previously selected one, as well as the newly selected one turn to "activated", and points counter goes from 0 to -1.

Not a big issue, by swapping advantages/disadvantages a couple of time selection is still possible. Needs some small polish whenever there is time.