Unable to run quickstart-fr.py due to ValueError exception

[acerioni]

A ValueError: numeric_only accepts only Boolean values exception is raised by line 78. By inspecting the content of population_df, I realized that NaNs exist in columns from and to: is that expected?

Thanks in advance for your help!

[FlxPo]

Thanks for the issue, I will check what's going on as soon as the big ongoing refactor is merged with main !