I download the image from remote and use local image url to fill communication notification. But notification attachements do not display

why use [INImage imageWithURL:xxx] INPerson show other application avatar? INPersonHandle *personHandle = [[INPersonHandle alloc] initWithValue:nil type:INPersonHandleTypeUnknown]; INPerson *senderPerson = [[INPerson alloc] initWithPersonHandle:personHandle nameComponents:nil displayName:displayName image:image contactIdentifier:nil customIdentifier:nil];