To force a global refresh in AppV 5 you have to do the following:
1) Open a command prompt to “C:\Program Files\Microsoft Application Virtualization”
2) Execute the following:
cscript.exe SyncAppvPublishingServer.vbs 1 -Global -NetworkCostAware
The number “1” is the publishing server you want to sync to.
You can view the global refresh schedule set by AppV in the Task Scheduler: