EDNS/ECS Broken

It's quite possible I've done something stupid, but if not, it appears that EDNS isn't working as expected currently and in turn is causing CDN traffic to route to Australia instead of New Zealand for some sites . 

If I test using dig help.nextdns.io CHAOS  the smart-ecs header shows.

client-name.nextdns.io. 0 CH TXT "nextdns-mac"
smart-ecs.nextdns.io. 0 CH TXT "14.137.0.0/24"

However if I test externally it is showing no EDNS is being passed - Tested on both a Macbook and Samsung S25 to ensure it isn't device specific. 

https://dnscheck.tools/ - Does not show any ECS records

http://test.edge.apple/debug/ - No EDNS pass.

{"connectionInfo":"http/1.1","npnNegotiated":false,"who":"ausyd2-edge-fx-016","5m":
{"fileSizeInBytes":5242880,"timeInMs":341,"throughputInBitsPerSecond":122997964.8},
"ip":{"DNS":"185.99.133.208","EDNS":"","HTTP":"116.X.X.X"}}

dig +tcp +nocomment chaos google.com @ecs-test.nextdns.io

google.com. 82 IN A 142.250.70.238
proto.nextdns.io. 0 CH TXT "TCP"
server.nextdns.io. 0 CH TXT "gsl-mel-1"
profile.nextdns.io. 0 CH TXT "default"
client-name.nextdns.io. 0 CH TXT "unknown"
smart-ecs.nextdns.io. 0 CH TXT "not sent"

Diag Test - https://nextdns.io/diag/ddbe1270-8465-11f0-9152-11fa754f28d5