I have 3 different views, each view contains between 1-3 test jobs. The Test Trend Chart shows just one day for two views (with 2 or 3 test jobs), while the Test Trend Chart in one particular view shows 8 days? However, neither number of days reflects "Number of (latest) days to display", which I have 14 days for each view?

So based of which number/Jenkins setting does Test Trend Chart display its history?