It looks like the forecastIcon is being reported as null which is why SharpTools is falling back to displaying N/A.
The SharpTools weather tile looks for either a weatherIcon or forecastIcon attribute to determine which icon to show.
I’m away from my PC and Hub today, but I can take a closer look at the driver and see if I can figure out what’s going on when I get back. The driver probably just needs a tweak to report that attribute properly.