Hi!
We too have many troubles with queues and other LV-functions in a big application. They freeze during our long time tests. Sometimes it takes hours and sometimes it takes only 50 minutes.
We have at least found out that it has something todo with the timed loops (or timed structures). The LV-functions that causes the application to freeze are all inside a timed loop.
When we replaced it with a while loop we hadn't any problems any more. So my question is, is the above shown VI somewhere in a timed structure???
Martin