Why Splunk showme events outside the frozenTimePeriodInSecs setting?

Hi there! I'm trying to set up the buckets in one splunk deployment. I want to delete events greater than 1 week and for that I write the next parameters for some indexes inside the **local/indexes.conf** frozenTimePeriodInSecs = 604800 rotatePeriodInSecs = 60 maxHotBuckets = 1 maxHotSpanSecs = 3600 maxHotIdleSecs = 60 maxWarmDBCount = 1 I check the **splunkd.log** and the BucketMover works without errors... but when I'm checking the events inside the indexes with the next query... index=someindex | chart count over date_mday by date_month ... Splunk showme events from days outside the **frozenTimePeriodInSecs** that I set. Sometimes 3 days more, other times even 6 or more... Any clues? Deployment: OS: Ubuntu server 14.04LTS 64bits Splunk: Enterprise 6.3.2