1.1/statuses/retweets/:id.json is empty. What's wrong?


I can’t understand why my response is zero every time.
I try to get retweets for tweet, but if tweet have or not retweets, i always get zero-value of response-array.
Please, what’s wrong?
P.S: I check oauth_signature (mentions are coming in normal way, also i can get info about tweet like “retweet_count”)