Started a new game, built buildings, Hired soldiers. Clicked on the soldier load-out tab (which now I think about it while I'm writing has no soldiers to customise as they haven't arrived yet) and the game CTD. I also experienced this with the previous build when I was placing a second base. Which I probably didn't have any soldiers to adjust. That's probably the problem causing the crash.
Clicking on soldier load-out tab with no soldiers present. I'll test the theory now.
edit: Ok so I have tested this now and every time I click on the soldier load-out tab before the soldiers arrive the game CTD. If I wait until they arrive the game continues as normal. As I said before it does this for any base you build. Obviously it shouldn't CTD for any reason but that tab should be usable without soldiers so you can set up what you wan't the default fit out to be. So please don't just disable the tab until soldiers arrive as the fix.
edit 2: I have started a new game and there are no UFO's appearing at all. This is what happened to my last saved game after the new patch. I thought the new patch had broken my save. Even with a new game there are no UFO's. An alien base was reported eventually which I sent my team in for their first mission. The chopper gets to the point and nothing happens. They just disappear. This new patch seems to of totally broken the game.