Since few updates there is an annoying feature that appears. It appears really often, when I click near the end of my document, a selection is done from the bottom of the document until where I clicked. So if I try to selected something else, or if I try to highlight something the same thing occurs. When this bug appears, I smash the pageup/pagedown button, try to select all, click everywhere, etc, and the problem dissapears by itself.
It's a little bug, but really annoying during a production time work.