As shown in your screen shot and on my local install, on the right side of the graph, Temperature with a question mark/box; It looks like line 34 you have text: 'Temperature \xef\xbf\xbd' which is apparently a UTF-8 BOM. Should that be changed to ° for a degrees symbol? or just removed?
As shown in your screen shot and on my local install, on the right side of the graph, Temperature with a question mark/box; It looks like line 34 you have
text: 'Temperature \xef\xbf\xbd'which is apparently a UTF-8 BOM. Should that be changed to ° for a degrees symbol? or just removed?