Hi guys.
I have a problem with the elements in UV editor.
I'm following tutorial on YT and didn't have any problems until I had to
 make some adjustments to those elements (just like the tutor). So what 
I'm doing - I open UV editor, select "shell" and click on the element 
that I previously prepared exactly like in the video. I want to move it 
and everything would be fine except the thing I can't. I want to move one particular element independently but it moves 
other elements as well. When I select the element (with shell) I can see
 that half of vertices in editor are highlighted. This is weird because I
 shouldn't see any vertices highlighted, only that piece I selected. I 
thought that I changed something during work but I checked other saves and
 it's all the same. I even restored settings to default.

 
                    
                 
            
Replies
Select the Move Tool, go to the Tool Settings (either double click the tool in the sidebar or go to Window -> Settings/Preferences -> Tool Settings), scroll down to Soft Selection. There's a checkbox labeled Soft Select. If that is on, turn it off.