I have code that runs through a geojson file and plots columns from that file one by one to show the user the costs of an optimisation. It ran fine, until it came across a column of just nan values.

I have code that runs through a geojson file and plots columns from that file one by one to show the user the costs of an optimisation. It ran fine, until it came across a column of just nan values.

I have code that runs through a geojson file and plots columns from that file one by one to show the user the costs of an optimisation. It ran fine, until it came across a column of just nan values.

i am usin geopandas to merge tow dataframe.
this is the first dataframe:

I am trying to read a geopackage layer containing a geometry column, several text and float columns and some timestamp columns.The table contains around 300K records.