It's long standing problem. it it's biting like a pitpull many times.
The 3d manupilator is in many times barly visible and you do not see where you need to click.
I do not see on my screen where to rotate parts are on the 3D pivot.
Here's old request with a few more examples from long ago.
Note: it's possible that the image looks bigger in the browser , it does here. and that gives the impression it's still visible.