Sometimes writing to iCloud does not happen. What am I missing?

I have two classes with identical parallel code writing key-value data to the cloud.  One works well.  The other goes through the code, but somehow does not seem to write to the cloud - at least I cannot retrieve it.  I must be missing something.  Here is the code:

 

    NSUbiquitousKeyValueStore *kvStore = [NSUbiquitousKeyValueStore defaultStore];

    [kvStore setString:cloudString9 forKey:name1];

    [kvStore synchronize];

    NSLog(@"PersonViewController - WRITING UPDATE TO CLOUD - key = %@, value = %@", name1, cloudString9);

 

The log comes up and contains the expected string values.  Any suggestions?  Thanks.

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