'Recent presence' segments depend entirely on the chosen lookback window; a location visit from 90 days ago counted as 'recent' in a stale segment misrepresents current audience composition.
Detection
Segment build lookback window undocumented or exceeds the campaign's stated recency claim.
Mitigation
Define and enforce an explicit recency window (e.g. last 30 days) refreshed on a fixed cadence
Timestamp every segment build and expire audiences past their recency window