Are there any updates on this? I am experiencing exactly the same issue.

Got it, for it to work you need to: Under Hardened Runtime capabilities, enable Apple Events. Add a new NSAppleEventsUsageDescription in the plist file. There seems to be a typo in the WWDC video, the entitlement should be: com.apple.shortcuts.events Enjoy!

This is because the conversion is set by default from iOS 16/macOS13 here. You need to either set it to ct.target.macOS15 or ct.target.iOS18.