So I opened the Hype project in Hype Reflect.
Go the same issue. Then used the button to open in safari.
When I click the button there I get the alert to open the App Store.
So this is looking more and more that our apps cannot handle the itms redirect protocol/scheme.
It may be a simple thing to change that but not sure…
The does seem to be a scheme management for wkwebview
https://developer.apple.com/documentation/webkit/wkwebviewconfiguration/2875766-seturlschemehandler
But you are on your own there… 