Passing a VISA resource name from a vi to another vi

Hi everyone,  I'm using a global variable to pass the VISA resource name from a initialisation vi to an execution vi of an application, the problem is that the resource name hardly ever appears on the execution vi even when the condition to go from the initialisation vi to the execution one is that in the first one there is a resource name. Any idea about this?

I'd appreciate every comment.

Best regards.