YouTube Restricted Mode always on for Linked IP

Not sure exactly how to report this. All calls going through a configure (Linked IP) router always send www.youtube.com to restricted.youtube.com;

nslookup www.youtube.com
Server:        <nextdns ip>
Address:        <nextdns ip>#53

Non-authoritative answer:
www.youtube.com canonical name = restrict.youtube.com.
Name: restrict.youtube.com
Address: 216.239.38.120

I have no rewrites that do this and have no blocklists (NONE) added.

The machine I am testing from is hitting nextdns via a Linked IP. The client machine does not have a nextdns app installed on it. The steps below to test/set/verify do nothing to change the above response. 

set youtubeRestrictedMode to false

curl -X PATCH -H "X-Api-Key: <KEY>" \\n-H "Content-Type: application/json" \\n-d '{"youtubeRestrictedMode": false}' https://api.nextdns.io/profiles/<ID>/parentalcontrol

then nslookup

nslookup www.youtube.com
Server:         <nextdns ip>
Address:        <nextdns ip>#53
Non-authoritative answer:
www.youtube.com canonical name = restrict.youtube.com.
Name:   restrict.youtube.com
Address: 216.239.38.120

sends to restricted so I try to set it and trigger some reloading/cache clearing stunt. set youtubeRestrictedMode to true

curl -X PATCH -H "X-Api-Key: <KEY>" \\n-H "Content-Type: application/json" \\n-d '{"youtubeRestrictedMode": true}' https://api.nextdns.io/profiles/<ID>/parentalcontrol

wait 60 seconds then set youtubeRestrictedMode to false again

curl -X PATCH -H "X-Api-Key: <KEY>" \\n-H "Content-Type: application/json" \\n-d '{"youtubeRestrictedMode": false}' https://api.nextdns.io/profiles/<ID>/parentalcontrol

then nslookup

nslookup www.youtube.com
Server:         <nextdns ip>
Address:        <nextdns ip>#53
Non-authoritative answer:
www.youtube.com canonical name = restrict.youtube.com.
Name:   restrict.youtube.com
Address: 216.239.38.120

Am I wrong in assuming that the youtubeRestrictedMode controls the behavior I am seeing?