Navbar Temp Plugin not showing SoC temp

I'm pretty sure that I used to have this but did the Navbar Temp plugin not show the SoC temperature?

I have checked the Display Internal Temperature checkbox but no luck so far.

Any guidance much appreciated.

Python 3? You'll need this PR to make it work, since the author hasn't responded:

To install, head to the plugin manager > Get More > ...from URL, and enter: