New boundary just by clicking on top of an existing segment

[Rafael-Caro]

When I open a tier with segments inherited from its parent, sometimes, not always (and I haven't figure out when or why), when I want to double-click on one of the inherited segments or in a newly created one, just with the first click a new boundary appears. Then I click on the X and it disappears, leaving the previous segments there.
I am using Windows 10 Home and Chrome 56

[ronggong]

@Rafael-Caro I can not reproduce this issue. Normally, by clicking the segment, there should no segment or boundary generated. Maybe you clicked and dragged on your touchpad...

[Rafael-Caro]

I'm using a mouse. I had this issue in Spain, but I thought it was that I was too clumsy. Now I think it must be a Windows thing, because I paid attention to Oriol in Linux (right?) and you in Mac and it works fine.