Not able to make a new installation or change version

So what happens is first of all I'm just trying to play 1.14.2 so I can play on one of my friends servers who hasn't updated and I don't have that installed as a version on the new launcher so I go to create a new one and I click on version and the dropdown and the screen just goes black and when I click again it goes back to the screen I was just at with no change. This is really frustrating