Thanks responding. I did re-initialize the application however no error occurred and the script ran successfully. Still I don't see my application listed in Workbench. I am using workbench v3.1.1. I have two servers running apps with this version and both not displaying its APPLICATION IN WORKBENCH.
If you are having problems with communication between workbench and dev studio using 3.1.1, I recommend creating an SR and contacting support. Note that it's not recommended to use get/set instance config starting 3.1.x but you should still be able to discover dvals.
Thanks for the reply. It seems like application created with deployment template 3.2.2 cannot integrate with workbench 3.1.1. To enable the workbench integration, the application has to be created with toolandframework's deployment template. I am not sure whether it is a bug or the feature.