There was a stronger quake (7.3) just a few hours ago in southern Qinghai.

Possibly more movement on the same plate?

I suspect the challenges with this new app have to do with the link to the phone pay wallet, which is on the same phone.
My phone is linked to my wife's name for real name registration, but the WeChat Pay on the phone is linked to my bank account and passport number is part of the Pay registration.

When I changed the health code info to match the WeChat Pay registration (including name in upper case) it worked.
My next challenge, then, will come in 10 days when I get a new passport and have to change all of the registrations.

That's a huge development project.
How does it get so far along without having permits to build, or did they have illegal permits in the first place?

@Wookster. You’ve solved the problem. Entering my name in all uppercase succeeds. Thanks.

Thanks sunjiangyu.
That pretty well confirms that this mini program is now linking to the registration on the phone, and in my case that's with my wife's Chinese id which I can't enter into the document id.