Yeah my apologies, i missed that one,
So interestingly enough with Snapshot turned on it happens on all Cores/Threads
If i speak in language i know its like the engineering value isn't correct and is being given in Ghz rather than Mhz.
I have noticed the same bug also, everything else would appear normal.
This bug seems to occur with 6.40 ****
After thinking it was an issue with my system i came across this post and rolled back the version.
I reverted back to 6.34-4300 and it is working correctly there.