Rasterized image seems not to be dynamic in Holoviz tutorial part 5

Hello all.

I’m at the beginning of learning how to use HoloViz. As such I’m following the tutorial and am now doing “05_Composing_Plots.ipynb”.

When creating rasterized_pop, I am not sure I am getting the desired output.

If zooming approximately on the same area as the preceding ROI.plot(), I get this pixellated display:

When I run rasterized_pop.last, I always get the full world map as an output.

I also get “[IPKernelApp] WARNING | No such comm: hv-extension-comm” in the jupyter notebook log when creating rasterized_pop.

Can somebody help ?

Willing to give details, and get slapped for not following forum rules if needed.

Thanks beforehand.