I had a look at the code, and this is deliberate. The first priority when positioning the popup bar is that it should be close to where the mouse is, when the selection extends to the bottom of the screen there is no space at the bottom, so the bar is positioned above, and therfore covers some of the selection.
If you select instead from bottom to top the bar will be positioned above the top (note that there is a bug in the current release that will cause this to not work, but it will work in the next release onwards).
|