EKEventStore requestAccessToEntityType:EKEntityTypeEvent - doesn't work in watchOS2

hello. first of all sorry for my english.

i'm writing calendar app using EventKit in watch OS2

there's some problem with getting Permission.

[self requestAccess:^(BOOL granted, NSError *error) {
        NSLog(@"entry callback [watch overide]");
  
            NSLog(@"requestAccessToEntityType callback [watch overide] errer? %@",error);
       
            if (granted) {
                /
                NSLog(@"YYYYYYYYYYYYEEEEEEEEEEEESSSSSSSSSSSS");
           
            } else {
                /
                NSLog(@"NNNNNNNNNNNNNNNNNNOOOOOOOOOOOOOOOOOO");
            }
               
   
    }];

- (void)requestAccess:(void (^)(BOOL granted, NSError *error))callback;
{

    EKEventStore* eventStore;

        if (eventStore == nil) {
            eventStore = [[EKEventStore alloc] init];
        }

        NSLog(@"request permission with %@",eventStore);
        if ([eventStore respondsToSelector:@selector(requestAccessToEntityType:completion:)]) {
            NSLog(@"requested! %@",callback);
            [eventStore requestAccessToEntityType:EKEntityTypeEvent completion:callback];
        
        } else {
            /
            NSLog(@"fail not response on delegate");
        }

}

in simulator. it work firsttime after Reset contents.

but in real device (watch OS2 GM)

it doesn't work

LOG

request permission with %@ -> requested! %@" -> end

[eventStore requestAccessToEntityType:EKEntityTypeEvent completion:callback];

method doesn't call 'callback'

no problem anyone?