Hi Sibro,
The weird thing about the error 0xc1900401 and the W.U. loop is that when you first reported it and opened a thread on that problem, I was not getting it except in specific cases very intermittently, now you don't see it anymore and instead I see it every time I upgrade with ISO from previous 22H2 build. π
Johnny saw it intermittently and suggested to wait 24 hours to see it clearing on its own.
The whole thing doesn't make much sense, but with MS nothing ever does. π€
Anyway, I can reproduce the problem consistently on different machines and found a different workaround to clear the error as described in my previous post.
Error 0xc1900401 has several FBH reports which are not specific to this case that started with the Ni builds, but perhaps they are all related, who knows?
It is quite annoying and needs to be fixed in W.U.