Configurable Workbench: New static perspective plugin is not displayed in perspective plugin list

Description of problem:
When new static perspective plugin is created and browser is refreshed, it is not displayed in perspective plugin list.

Version-Release number of selected component (if applicable):
6.1.0.ER6

How reproducible:
-

Steps to Reproduce:
1. Create simple static perspective plugin (See attachment).
2. Add plugin file to plugins directory. (jboss-eap-6.4/standalone/deployments/business-central.war/plugins/)
3. Refresh browser. Navigate to the Plugins Explorer. (Extensions -> Plugin Management)

Actual results:
New static perspective plugin is not displayed in perspective plugin list

Expected results:
New static perspective plugin is displayed in perspective plugin list

Additional info:
-