Just like the other reports in this thread I have the same problem.
I imagine a number of other Speccy Users also have this issue. I will create a bug report to go with this post.
When you are watching overall PC temperatures then the CPU and Motherboard temps are quite important measurements.
To help with more info I installed Speedfan which can read PC temps and it showed my CPU as 128 degC (un-rounded value is 127.5) which I did not believe so starting the PC up new on the next day I checked Speedfan and the CPU temp was still 128 degC. This seems to indicate a reading proble