I have installed Windows on PCs for over twenty years. Every single time, one thing is true: it's a fresh start. Everything works, as long as the hardware is fine. If that machine had weird problems before as a result of years of Windows updates and other software updates, they don't exist anymore, at least for a while.
But in Kontakt's case, it seems to be the opposite. After having wiped my machine's C drive and installed Windows 11 from scratch, the first time I open Kontakt after having installed part of the instruments I own, I see this:
The only instruments that show thumbnails are the ones that I had to link to rather than download with Native Access. If I scroll to the top I can also see Albion One, although going down I also see these three, which were indeed downloaded with NA:
Why is it that years go by and Kontakt is still a mess?
And yes, I know there's probably to fix this, but in a Windows installation that is four days old, this kind of thing simply shouldn't happen. Hell, a fresh install is supposed to improve things, in this case, it's quite the opposite, because in the Windows install that was a year and four months old, all the thumbnails were present.
And before you ask, yes, I gave it plenty of time to build or rebuild the database. Last night I left Kontakt open, and this morning it was the same.