Question Regarding BIG-IP GSLB Prober Pool Behavior

I'm experiencing an issue with BIG-IP GSLB and would appreciate any insights from the community.

I have two data centers that are part of a synchronization group. Within this group, there's a Prober pool set up with a round-robin strategy, which includes two members: gtm1 and gtm2, each belonging to one of the data centers. A virtual service is referencing this Prober pool.

While analyzing the traffic on gtm1 by capturing packets, I noticed that I'm also able to capture packets sent from gtm2 to the monitor's destination IP in gtm1 device. Is this behavior due to some specific mechanism within BIG-IP GSLB, or it just indicate a misconfiguration in my network setup?

Any advice or explanations would be greatly appreciated.

Thank you in advance for your assistance.