Description

When the personalization action for the component variant is set to Hide and the Ignore other caching settings override with defined below caching option is checked, the following an unhandled exception might be thrown:

ERROR Failed to render rendering
Exception: System.Xml.XmlException
Message: The '' character, hexadecimal value 0x20, cannot be included in a name.
Source: System.Xml
   at System.Xml.XmlConvert.VerifyNCName (String name, ExceptionType exceptionType)
   at System.Xml.XmlQualifiedName.Verify ()
   at System.Xml.Xsl.XsltArgumentList.AddParam (String name, String namespaceUri, Object parameter)
   at Sitecore.Mvc.Presentation.XsltRenderer.AddParameters (XsltArgumentList arguments)
   at Sitecore.Mvc.Presentation.XsltRenderer.GetArguments ()
   at Sitecore.Mvc.Presentation.XsltRenderer.Render (TextWriter writer)
   at Sitecore.Mvc.Pipelines.Response.RenderRendering.ExecuteRenderer.Render (Renderer renderer, TextWriter writer, RenderRenderingArgs args)

Solution

To resolve the issue, consider one of the following options:

• Upgrade Sitecore XP instance to Sitecore XP 10.2.0 or later.
• Download and install the corresponding cumulative hotfix compatible with the affected product version available in:
  
  • For Sitecore XP 9.2: KB1001331.
  • For Sitecore XP 9.3: KB1001332.
  • For Sitecore XP 10.0.0: KB1001333.