Yesterday, I spent a significant amount of time working with Apple Support to troubleshoot this issue. Unfortunately, the only solution they were able to recommend, without any assurance that it would actually resolve the problem, was to perform a full Reset Settings operation.
This recommendation is extremely disappointing, as it would not only remove my frequently used Wi-Fi and VPN configurations, but also delete my Apple Pay cards, passes, and various personalized settings that would need to be reconfigured afterward.
In my view, this is not an acceptable solution. For the time being, I will simply have to live without access to the Shortcuts app. It is particularly frustrating that the proposed fix for an Apple-developed application requires users to disrupt and reconfigure numerous device settings, with no guarantee that the issue will be resolved.
I had expected a more targeted troubleshooting approach from Apple Support rather than a broad reset that creates significant inconvenience while offering little confidence in the outcome.