Empy plot while visualizing

[IsMM15]

Hello!
I am trying to plot the output of HiTAD after running it on a single resolution .cool file, however when I try to visualize it by following the steps on the tutorial, no figure comes out, only after running Triangle() the output is <Figure size 504x252 with 0 Axes>.
I leave the code i'm using below.
Any guess on what might be happening?

from tadlib.visualize.heatmaps import * vis=Triangle('T_50k.cool','chr13',110800000,112000000) vis.matrix_plot() vis.plot_TAD('TADS_6.txt',linewidth=1.5) vis.show()

Thanks!