Just wanted to share my experience coming from 1901. Something is definitively wonky with 1902/03 regarding both XMP settings. Asus?
(Note that I have nearly every timing setting set up manually anyway, not sure what XMP profiles really do in that case.)
Fact is: XMP-I settings loaded from 1901 wouldn't post, eventually landing in safe mode. Just setting MAN also didn't post, ok, probably because the other timing-related settings I had. Then I changed every visible setting according to the former XMP-I setting, and voila, it posts.
To be clear, every setting except the XMP-selection is identical. MAN posts, XMP-I/II doesn't. This is with 4 sticks non-QVL memory, B-Die 3200 CL14 😉
I also tried loading "Optimized Defaults". 1st post ok, then enabled XMP-I (and afterwards II), both post just fine. Somewhat strange, hadn't expected that, but it actually worked. This leads me to believe maybe the issue just is loading pre-1903 XMP-settings somehow messes up? But why? Every setting looks the same and I never had such issues in the past...