Is it normal for Windows to give an error with a new product key but still upgrade?

I tried to upgrade my new clean installed Windows 11 Home laptop to Windows 11 Education using a key that I got from Microsoft Azure for students (I already used this key once before on this laptop, but I clean installed it right now, so I'm using this key again on that same laptop). I entered the new key and it seemed to be working (it said installing upgrades) and when it got to 100% downloaded, it gave an error saying "We can't upgrade your edition of windows." So then I tried entering the product key again 2 more times, but then each time it gave another error saying "the product key you entered didn't work." So then I restarted my computer to hopefully fix the errors, but when I restarted, it got the regular black screen for updages, and it also said "adding features," so then it updated like that for only about a minute, and then booted up to normal Windows. I opened settings and it showed that Windows 11 Education was activated (with digital license to microsoft account). So then I entered the same product key one more time, and it said this copy of Windows has been successfully activated (even though it already was activated with Windows 11 Education after I restarted, which I don't know why it happened in the first place considering it gave an error?). It seems like all of the Education features are available though (like hyper-v and group policy). But why did this happen? Is Windows 11 Education successfully installed, or is it possible for it to be corrupted? What should I do? Any help would be greatly appreciated. Thank you!