the error in fastreport when exporting pdf

raysonrayson
in FastReport .NET

Under the same query conditions, there is no problem in exporting xls, but when exporting pdf, 

the following error message will appear sometimes, Please help to answer this question,tks.

language: C#

version: "2024.1.3" 

|ERROR|WebApi.Middleware.ExceptionMiddleware|異常: System.ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection. (Parameter 'index')

  at System.Collections.Generic.List`1.set_Item(Int32 index, T value)

  at FastReport.Export.Pdf.PDFExport.WriteFont(ExportTTFFont pdfFont)

  at FastReport.Export.Pdf.PDFExport.AddPDFFooter()

  at FastReport.Export.Pdf.PDFExport.Finish()

  at FastReport.Export.ExportBase.Export(Report report, Stream stream)

  at FastReport.Report.Export(ExportBase export, Stream stream)

  at WebApi.Area.Final.Controllers.AsfRptReferenceController.AsfPrintReference(DefaultCondition model) 

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