plots we create in the notebook are not saved as it was made.
I'm assuming these are matplotlib plots ?
Notice that ClearML tries to convert the plot into interactive plots, in that process sometimes, colors and legend is being lost (becomes generic).
You can however manually report the plot, and force it to store it as non-interactive:
task.logger.report_matplotlib_figure( title="Manual Reporting", series="Just a plot", iteration=0, figure=plt, report_interactive=False )