Number Master_Voltage "Master BD Volts [%.2f V]" <electric> { mqtt channel }
Chart item=Master_Voltage period=D refresh=300
resulting chart is missing the label. i used to have labels on all my charts. recently upgraded to 2.2.0 and now no labels on any charts. they otherwise appear to be working fine
oddly, if i generate the chart this way, it’s fine. its the sitemap that’s ignoring it for some reason?
Yet another thing that changed during the transition to 2.2.0
see: https://docs.openhab.org/configuration/sitemaps.html#element-type-chart
append legend=true (or false) to your chart line:
Chart item=Master_Temperature period=4h refresh=300 legend=true