transient behavior of "QT GUI Time Sink"

Hi all,

I would like to know how the "QT GUI Time Sink" block acts when its input items are limited.

For instance, when I connect a "Vector Source" with range(10) as the vector, it shows nothing except when I change its "Number of Points" to 8 or less !!!

I really appreciate it!

Regards,

Ali G. Dezfuli