spy() plotting y-axe inverted

[xarico10]

When using spy() the y-axis is being plotted starting on 0 and increasingly (starting in 0 and going up), not decreasingly as in MATLAB:

B = bucky;
spy(B)

fig2plotly();

Expected and generated (https://chart-studio.plotly.com/~xarico10/357/#/) plots:

Examples on using spy() can be found on:
https://www.mathworks.com/help/matlab/ref/spy.html#responsive_offcanvas