Is HWINFO supposed to be able to pick up changes to clock speeds on the fly?

I had a couple of cards throwing out lots of memory errors so with HWINFO and the miner running I reduced the speeds but the memory errors kept increasing.  So I stopped the miner, set the lower clock speeds and no more memory errors.

To test it further I then increased the clock speeds back up to the high setting that was originally throwing errors, but this time no errors showed in HWINFO.

Is this an issue with HWINFO?