Thanks to a tip from the developers of another app, we found that changing the deployment target of the watch app from watchOS 7 to watchOS 8, allowed the app to be installed on devices running watchOS 8.
Since all devices that supported watchOS 7 also support watchOS 8, this was an acceptable workaround and we have now released an app update with this change.
Topic:
App & System Services
SubTopic:
Core OS
Tags: