Custom notification images are confused with those from other apps.

My app uses custom notifications with custom images. Why do these images get mixed up with those from other apps, causing my notifications to display images from other apps? `INImage *avatarImage = [INImage imageWithImageData:imageData];

    NSPersonNameComponents *nameComponents = [[NSPersonNameComponents alloc] init];
    nameComponents.nickname = content.title;
    
    INPersonHandle *handle = [[INPersonHandle alloc] initWithValue:nil type:INPersonHandleTypeUnknown];
    
    INPerson *messageSender = [[INPerson alloc] initWithPersonHandle:handle
                                                      nameComponents:nameComponents
                                                         displayName:content.title
                                                               image:avatarImage
                                                   contactIdentifier:nil
                                                    customIdentifier:customIdentifier
                                                                isMe:NO
                                                      suggestionType:(INPersonSuggestionTypeNone)];
    
    INSpeakableString *speakableString = [[INSpeakableString alloc] initWithSpokenPhrase:content.subtitle.length ? content.subtitle : @""];
    
    INSendMessageIntent *intent = [[INSendMessageIntent alloc] initWithRecipients:@[messageSender]
                                                              outgoingMessageType:(INOutgoingMessageTypeOutgoingMessageText)
                                                                          content:content.body
                                                               speakableGroupName:speakableString
                                                           conversationIdentifier:identifier
                                                                      serviceName:nil
                                                                           sender:messageSender
                                                                      attachments:nil];
    
    [intent setImage:avatarImage forParameterNamed:@"speakableGroupName"];
    
    INInteraction *interaction = [[INInteraction alloc]initWithIntent:intent response:nil];
    interaction.direction = INInteractionDirectionIncoming;
    [interaction donateInteractionWithCompletion:nil];
    
    UNNotificationContent *_content = [content contentByUpdatingWithProvider:intent error:nil];
    UNNotificationRequest *request  = [UNNotificationRequest requestWithIdentifier:identifier
                                                                           content:_content
                                                                           trigger:trigger];
    [UNUserNotificationCenter.currentNotificationCenter addNotificationRequest:request withCompletionHandler:completionHandler];`