Subplots not working

Example code:
```
t = 0:pi/10:2*pi;
[X,Y,Z] = cylinder(4*cos(t));
subplot(2,2,1); mesh(X); title('X');
subplot(2,2,2); mesh(Y); title('Y');
subplot(2,2,3); mesh(Z); title('Z');
subplot(2,2,4); mesh(X,Y,Z); title('X,Y,Z');
```
produces: https://chart-studio.plotly.com/~danton267/1210/x/#/
instead of : https://uk.mathworks.com/help/examples/matlab/win64/GS2DAnd3DPlotsExample_06.png
