@Vlad-Nirky Thanks for the reply! Yeah, my understanding is this generally works smoothly. I just wondered if my issue was a one-off, or uncommon but sometimes encountered.
I suspect my database is just screwed up somehow.
pragma integrity_check didn't find anything wrong, but that's as far as I got.
Anyway, not looking for support, just thought I should see if any others experienced something similar.
Congrats on your NP1! And 26.04, very cool!