Problem with function legend

Hi I have installed matlab r2019b on my pc where there is windows 10 pro my problem is when I want to plot the colored line which the relative legend. In the plot could be the box with black border with inside the description and the color line to which we refer. In my program don't see the black border of legend and the colored line but only the name of line. I have tried to unstalled and reinstalled matlab but The problem is still there. What should I do?

Answer 1

[Star Strider]

Setting:

opengl software

appears to work for this problem. Also consider: Use Software OpenGL for Future Sessions.

See the documentation on opengl for more information.