Great webinar today @Guy Stewart (Victron Community Manager) - many thanks.
I finally got all of the widgets working after deleting and reinstalling VRM. Some feedback:
1) I don't know whether you have any control over the colours of the large VRM widget but the choice of colours makes the graph almost unusable.
2) Can the ESS widget be made smaller? Also, the low SoC would be more helpful if it showed the Active SoC Limit rather than the Minimum SoC.