Small bugette in heatpump app?

Hi Folks,

Playing with the awesome heatpump app in emoncms and noticed an inconsistency in average outdoor temp display.

Hopefully screenshots show the issue. The stats table and the averages table match for everything but outdoor temp which is significantly off in the averages table (the stats table figure of -1,13 is correct).

I zoomed in closely in an approx 1 hr period in the graph.

Am I being thick ?