Correctable ECC errors in Free and Pro version

[hhware]

I have MemTest86 Pro 9.4 and the latest Free version, 11.2. The Pro version reports a lot of correctable ECC errors on a particular set of hardware (no uncorrectable errors), whereas the newer Free version doesn't report anything on the same hardware, just successful completion of the test. ECC polling is enabled in both cases. Is that intended?

Sorry, could not find a clear answer in the FAQ. Thanks!

--Alex

[David (PassMark)]

No, that isn't intended.
The Free version can report ECC errors.

Is the behavior repeatable? Or might it just been a co-incidence (i.e some other external factor, like temperature, causing the errors during a short period)?