User lookup endpoint reported a sudden drop in follower count on 10/28 for the Autozone handle. Twitter analytics does not show any sudden change, but we collect follower_count daily from the users/lookup endpoint. For 10/27 we had 23416 and on 10/28 we showed 21234. The current follower count we have (from the users/lookup endpoint) matches what is shown on the timeline page for Autozone. Is there a reason for this sudden drop? We made no code/API call changes.