TOC page is blank for second time pdf generation in .net core 6

[Mashhood Sadique]

I am using wkhtml for generating reports. Report is generated correctly for the first time after each deployment, but next time onwards the TOC page is completely blank

this is my TOC settings

tocSettings = new TableOfContentsSettings

                {

                    IsTableOfContent = true,

                    UseDottedLines = true,

                    PagesCount = true,

                    WebSettings = { DefaultEncoding = "utf-8", UserStyleSheet = pdfGenerationParameters.TOCStyleSheetPath },

                    FooterSettings = { FontSize = 6, Right = "Page [page] of [toPage]", Line = true, Spacing = 3 },

                    HeaderSettings = { FontSize = 9 ,FontName ="sans-serif"}

                };