When I delete a report from the Reports page, it disappears from the list. However, its details are still visible.

When I refresh the page, the deleted report info disappears.

The Report Server's built-in Web Report Designer does not resolve custom functions assemblies that are referenced in the TelerikReporting.config configuration and thus, on Design time, they are not visible under Functions -> Misc. 

The workaround around is to reference the custom functions assembly in the Web.config file in {install_dir}\Telerik.ReportServer.Web

When I try to set a new SMTP I receive the error:

An error occurred while saving the settings: The changes were not applied!

There is nothing logged by the Trace Listener or in the Windows Event Viewer.

I am trying to edit an existing user, and before changing anything I receive the error message 'The email is already taken!'. This happens occasionally.

Here is a link to a video that demonstrates the problem.

Edit User Dialog cannot be closed through the Cancel/Save button after resetting the user's password. The issue appears to happen when the password is auto-filled.

Even though the dialog cannot be closed through the Cancel/Save button, it closes successfully through the X button in the top right corner. However, that user will no longer be visible on the page needs to be reloaded.

The CommandTimeout property of the MSSQL Storage is respected when provided in the ReportServerAdmin.config of the Report Server, for example with the following code:

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <configSections>
    <section name="reportServer" type="Telerik.ReportServer.Web.Configuration.ReportServerConfigurationSection, Telerik.ReportServer.Web" requirePermission="false" allowLocation="true" />
  </configSections>
  <reportServer>
    <storage provider="MsSqlServer">
      <parameters>
                <parameter name="ConnectionString" value="Data Source=(local)\MSSQLSERVER01;Initial Catalog=RESTStorage;Integrated Security=SSPI" />
		<parameter name="commandTimeout" value="360" />
      </parameters>
    </storage>
  </reportServer>
</configuration>

The user should be able to provide this value from the Configuration page for the Storage settings, as this is done for the connection string.

We cannot delete reports using the Report Server UI. After you select the report and choose to delete it, the report appears as removed from the list, even though the details are still visible. If you refresh the page, the report is still there.

Further investigation revealed that the ServiceAgent is not running. There is no proper error message indicating this though.

The issue is reproducible only with the Report Server running under HTTPS. When under HTTP there is a proper message stating that the ServiceAgent is stopped.

In a Scheduled Task created with the Report Server API, the day of the week in the recurrence rule is not shown in the Edit Task window of the Report Server Manager. A detailed description of the issue is available in this forum post.

Getting this error in the browser when trying to preview a report:

Error registering the viewer with the service.
An error has occurred.
Incorrect value (null) deserialized. Make sure you are using CacheStorage inside single-instance application deployment only.

A possible reason is the cache for the Report Server used for previewing reports has become corrupted. A workaround is explained in the Telerik.Reporting.Cache.CacheStorage.AddInSet NullReferenceException KB article.

It will be very convenient for the user to be able to clear the cache directly from the Report Server Manager UI.

If you set a default value of integer subreport parameter to '3233' or another valid integer, when executing the main report there will be an exception stating that the value for this parameter is not valid and the report processing is canceled. The parameter exists only in the subreport and not in the main report.

The error disappears if the value of the parameter is set with an Expression, for example, '=3233'.