NPrinting 17 keeps a connection open with a QVW so long as there are tasks in the queue for Engine to execute which contain reports which use those connections. As soon as the queue is cleared, or if the subsequent tasks use different QVWs, the connections will be closed.
The next time a task is executed using that QVW, the connection will be re-opened and any data loaded in the interim will be populated into reports.
Task1 uses Connection1 and Connection2 and runs from 01:00 - 03:00.
Task2 uses Connection2 and runs from 02:30 - 04:00
Task3 uses Connection1 and runs from 03:30 to 04:00
[Connection1 = QVW1, Connection2 = QVW2 & Connection3 = QVW3]
If QVW1 is reloaded between 03:01 and 03:29, Task3 will use the reloaded version of QVW1.
If QVW2 is reloaded between 01:01 and 02:31, Task2 will use the old version of QVW2.