MMMageshyadav M Syncfusion Team January 10, 2019 10:17 AM UTC
We are unable to reproduce the issue. Can you please share us the log files from the deployed location? That will be helpful to provide the solution. Please refer below KB to collect and share the log files.
MMMageshyadav M Syncfusion Team January 11, 2019 10:33 AM UTC
Sorry for the inconvenience caused.
The reported issue occurred when we try to import more users from the existing database. It exceeds default JSON serialization length allowed in the report server app. To solve this issue, please add below code in the configuration file C:\Syncfusion\Report Server\ReportServer.Web\Web.config below the <system.web.webPages.razor> node as shown in the image below
<jsonSerialization maxJsonLength="50000000" />
However, we will fix this issue in the upcoming report server 3.2 release which is excepted on mid of January 2019.