This helped solve the issue: in ScreenTimeReport-Info.plist replace NSExtension / NSExtensionPointIdentifier with EXAppExtensionAttributes / EXExtensionPointIdentifier.

@DTS Engineer I'm experiencing the exact same issue. Is there a fix planned for this? Environment: Xcode 26.2 (24553) (Build 17C52) iOS tested: 18.7.2 and 26.3