title: The cursor randomly disappears in Eclipse 2019-09 and sometimes stops writing
body: <p>I have a very annoying problem with Eclipse 2019-09 (4.13.0) version: while I'm editing code (often when I copy and paste things or after accepting a code completion suggestion) the cursor (I'm talking about the text cursor: <code>|</code>) disappears completely! I cannot see it anymore, so I'm not able to detect on which part of the line I am! This is very annoying. I found a partial fix by installing the extension 'Vrapper': enabling and disabling it makes the cursor appear again.</p>
  
  <p>Another problem I experience every time I press <kbd>Ctrl</kbd>+<kbd>Space</kbd> to ask for code completion suggestions, the cursor stops writing. After doing random things like switching tabs or opening new files the cursor starts to write again, but then the keyboard shortcuts stop working and I have to restart the entire IDE.</p>
  
  <p>This behavior is intolerable, so I was wondering whether somebody else has had the same problem and how they have dealt with it.</p>
  
  <p>The configuration of my system is:
  OS: Debian, using i3wm+compton as a window manager on Xserver. </p>
  
  <p>Thanks in advance.</p>