I just updated to Unreal Engine 4.5.1, and for some reason I am having lots of trouble creating a new timeline. All I want to do is make an a cube slide up and down, and have easily done it before in previous versions. Now the check boxes for all the different axis are uncheckable, and when i compile it, the randomly become checkable. I am also having trouble just making a new point, as all three axis go to the same point, and just all sorts of trouble like that.
See the screen shots for more clarification, or comment.