I'm using HWinfo quite a while just for checking my hardware. It looks like one off the many updates in Win10 braught up this flaw:
In System Summary there are no memory modules to select.
The modules used are Patriot Viper 4, DDR4-2400, CL15-15-15-35.
It looks like your memory modules might have damaged SPD memory and that's the reason why HWiNFO doesn't recognize it. Some of the entries required contain invalid values.
You might try to check them with Thaiphoon Burner what that will say.
Anyway, I will add a workaround for this in the next build of HWiNFO.