I refrain from humoring wild guesses.
I can see that the most likely cause of the bug is flawed manufacturer implementation of the feature, hopefully in fixable BIOS code that will be made available to the people that use this feature. I expect Intel and MSI to work together to find a resolution.
Additionally it was mentioned straight from an Intel representative themselves that he or she is not sure, but it's possible that this feature does not support 16 GB of RAM, and it could possibly be that only up to 8 GB is supported; he, or she doesn't know; please do your own testing.
How is it that the Intel representatives themselves are unable to find a reliable answer to in particular the RAM system requirements of this feature?
I might go so far as to say it's mind boggling!