NSUserActivity does not show up in Shortcuts app in iOS 14.3 (it works in iOS 14.2)

I have been using the following shortcut since iOS 12 with no issue. But in iOS 14.3 it has stopped showing up in the Shortcuts app. In iOS 14.2 it does show up. This can be tested with the simulator:

Code Block 
NSString * title = NSLocalizedStringFromTableInBundle(@"Traffic status", nil, [LanguageModel sharedInstance].languageBundle, nil);
NSString * activityType = [[[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleIdentifier"] stringByAppendingString:kUserActivityTrafficMap];
NSUserActivity * userActivity = [[NSUserActivity alloc] initWithActivityType:activityType];
userActivity.eligibleForSearch = YES;
userActivity.title = title;
userActivity.eligibleForPrediction = YES;
userActivity.suggestedInvocationPhrase = title;
CSSearchableItemAttributeSet * attributeSet;
if (@available(iOS 14, *))
	attributeSet = [[CSSearchableItemAttributeSet alloc] initWithContentType:UTTypeItem];
else
	attributeSet = [[CSSearchableItemAttributeSet alloc] initWithItemContentType:(NSString *)kUTTypeItem];
attributeSet.thumbnailData = UIImagePNGRepresentation([UIImage imageNamed:@"UserActivityMapa"]);
attributeSet.contentDescription = NSLocalizedStringFromTableInBundle(@"Shows the traffic around you", nil, [LanguageModel sharedInstance].languageBundle, nil);
userActivity.contentAttributeSet = attributeSet;
self.mapViewController.userActivity = userActivity;

Is this a bug in iOS 14.3? Am I missing something?

Thank you.