I'm relatively new to vim and I'm facing the issue on VMware(bionic).
I cannot switch to editor when splitting the view (:vspor :sp). 
The cursors is placed in newly opened file, but the first file (from which :sp is called) is like frozen and also cannot be resized (dashed line between is not dragable). I'm using .vimrc. Any help would be appreciated.
 
     
    