Refer to the exhibits.

Exhibit A -

Exhibit B -

Exhibit A shows the packet duplication rule configuration, the SD-WAN zone status output, and the sniffer output on a FortiGate device acting as the sender. Exhibit B shows the sniffer output on a FortiGate device acting as the receiver.

The administrator configured packet duplication on both FortiGate devices. The sniffer output on the sender FortiGate shows that FortiGate forwards an ICMP echo request packet over three overlays, but it only receives one reply packet through T_INET_1.

Based on the output shown in the exhibits, which two reasons can cause the observed behavior?

(Choose two.)