Temperature in the systray often not refreshed

To watch my CPU temperature, I configured Speccy to start with Windows, minimized in the systray and displaying the CPU temperature.

I noticed the displayed temperature is often stale, i.e. it's not refreshed. It happens often but not always, it seems to be quite random. It seems to often happen on fresh boot.

It happens as well when the system is idle, so it's not related to the process "below normal" priority.

If I mouse hover the systray, the temperatures popup also displays stale temperatures. To get the temperatures refreshed, I have to "wake up" Speccy by double-clicking the systray icon to display the program window.

Speccy 1.31.732

Windows 7 64-bit