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FastReport.OpenSource.Web 2026.2.3 WebReport preview blank page on .NET 6 with circle black #835

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@SisPrime

I updated the FastReport.OpenSource.Web 2022.2.17 Net 6 to 2026.2.3 and all report dosen´t work, when execute de command below:

    public async Task<IActionResult> CompraListagemGeralReport(int FornecedorID,string DataInicial, string DataFinal,int Faturado, string DataInicialPedido, string DataFinalPedido, int FilialID)
    {
        //criamos uma instancia do objeto webreport
        var webReport = new WebReport();
        webReport.Report.Load(Path.Combine(_webHostEnv.ContentRootPath,"wwwroot/reports", "Compra_Listagem_Geral.frx"));

        // Obtemos uma instância do objeto MsSqlDataConnection
        // e definimos a string de conexão para o banco de dados nele
        var mssqlDataConnection = new MsSqlDataConnection();
        mssqlDataConnection.ConnectionString = _config.GetConnectionString("Context");
        //obtemos e definimos os valores para os parâmetros usados         
        var conn = mssqlDataConnection.ConnectionString;

        webReport.Report.SetParameterValue("Conn", conn);
        webReport.Report.SetParameterValue("DataInicial", DataInicial);
        webReport.Report.SetParameterValue("DataFinal", DataFinal);
        webReport.Report.SetParameterValue("FornecedorID", FornecedorID);
        webReport.Report.SetParameterValue("Usuario", Usuario);
        webReport.Report.SetParameterValue("DataInicialPedido", DataInicialPedido);
        webReport.Report.SetParameterValue("DataFinalPedido", DataFinalPedido);
        webReport.Report.SetParameterValue("Faturado", Faturado);
        webReport.Report.SetParameterValue("FilialID", FilialID);

        //exibimos o relatorio
        return View(webReport);
    }

I tested with a new report only with the text and the problem keep.

Visual Studio 2022.
C# MVC with net 6.0
Windows 2011

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