Any idea ?
By advance thank you
(It was working perfectly until yesterday when I ‘pip install panel’ for treemap purpose Treemap chart - #3 by _jm but not sure it is correlated )
The discussion in that issue also proposes a workaround until the bug is directly addressed.
The change in behavior could be correlated to changes to your environment as you suggest depending on which version of panel you pip-installed and any dependency it has on a minimum bokeh version (such that bokeh was also updated as part of the procedure). But the problem here is a regression in bokeh.