Info/Profession/Resource/Happiness UI - Unable to activate Villager Happiness tab without other clicks

When I press ‘P’ or ‘R’ to bring up either the Resources or the Professions UI, I am unable to then click through to the Villager Happiness tab.

If I click on either the same tab I’m on or one of either Information or Resouces/Professions then I am able to activate the Villager Happiness tab, but, if I don’t activate a different tab first then the Village Tab is just unrepsonsive.