IW 15.5.9 IWChart

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Hi am using Delphi 10.2, what works in 15.5.9 now raise an error as below and program can't be compiled:

[dcc32 Error] E2251 Ambiguous overloaded call to 'Add'
IWChartJS.pas(1): Related method: function TChartData.Add(TDateTime): TChartData;
IWChartJS.pas(1): Related method: function TChartData.Add(Double): TChartData;