Environment: MATLAB 2019b in Linux Ubuntu 18.04.
When I launch the MATLAB firstly, the help broswer and live script works well, however, after I run some programs, the help broswer and live script stops to work.*
* I mean no action when I click the botton in the help broswer and live script can not display normally. see the attached capture.
"sudo apt-get install libgconf2-4 " has been conductted.