Eero doesn't include IPv6 in activity

The Eero 6+ (model R010001, software v7.6.3-103) shows network activity for client devices, but I've recently noticed that it doesn't include IPv6 traffic in there.

IPv4

Running an iperf3 test to max out the connection on IPv4: [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-1.00 sec 100 MBytes 842 Mbits/sec 61 2.12 MBytes [ 5] 1.00-2.00 sec 106 MBytes 891 Mbits/sec 0 2.30 MBytes [ 5] 2.00-3.00 sec 106 MBytes 891 Mbits/sec 0 2.45 MBytes [ 5] 3.00-4.00 sec 106 MBytes 891 Mbits/sec 4 2.50 MBytes etc
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IPv6

Running an iperf3 test to max out the connection on IPv6:
[ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-1.00 sec 96.0 MBytes 805 Mbits/sec 0 3.05 MBytes [ 5] 1.00-2.00 sec 106 MBytes 891 Mbits/sec 0 3.05 MBytes [ 5] 2.00-3.00 sec 106 MBytes 891 Mbits/sec 0 3.05 MBytes [ 5] 3.00-4.00 sec 105 MBytes 881 Mbits/sec 0 3.05 MBytes etc
shows