Radar - problem

Hi Everyone,
Did You noticed that on radar appearing only planes flying from HUB to HUB or planes on the way from Your HUB.
There is not aircraft on the way back to Your Hub base.
I am not sure but before, We could track all Your planes, no matter direction.

Co to jest HUB?

In business speech it is the center of your economical activity. Here it is the airports you have with a fleet flying around to destinations and back.