I expected the data on the Cursor and if no data is there nothing…like in any other tool excel, grafana, home assistant…
Ot at least a sentence like last valid data on…or the tooltip label in the far left side to show that it’s last valid data
here you see the cursor and the tool tip label is not synchronized. and you get two different dates so now it’s unclear which date is true and your data was valid
something like this (this is how grafana,excel, home assistant, … is doing it) 3 possible options or you can do a mix out of it
otherwise if you dont read all you get confused…
quick and dirty via js paint on my mobile sorry for no better graphical version…