Blank screen displayed on the console

Scenario: Sometimes when you upgrade from version 11.0.00 to 11.3.01, you might see a blank screen when you log on to the TrueSight console. This scenario can also occur if you apply the TrueSight Presentation Serverfeature pack or fix pack.

Reason: This problem occurs when the TrueSight App Visibility Manager folder available under the installationDirectory\truesightpserver\modules\tomcat\webapps directory gets corrupted. 

Solution: 

1. Clear your browser's cache and cookies.
2. Access the TrueSight console.

If you continue to face the same issue, perform the following steps:

1. Go to the following directory and delete all the folders (except the ROOT folder and the *.war files):
   
   • (Windows) installationDirectory\truesightpserver\modules\tomcat\webapps
   • (Linux) installationDirectory/truesightpserver/modules/tomcat/webapps
   The deleted files are automatically recreated.
2. Clear your browser's cache and cookies.
3. Access the TrueSight console.