When I am modeling a part in 2019, I am having this problem. If I use the measure tool and use the middle mouse button to hold and rotate the view, the icon stays as a measure tool when i move it back into the measure results box. It should change to a cursor. When it does not change, I can't select any of the elements to delete them if i want to measure something else. When I rotate the view with my 3Dconnexion Space Pilot Pro, it performs as expected. Can anyone verify this is happening to them as well. I have performed these same procedures since 2013 and 2019 is the first to exhibit this behavior.
I just remembered before I hit post that it can also have the rotate icon stick and then you can't get it to change to a cursor inside the feature manager.