NEST app on iPhone not working

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Expected Behaviour:

Nest app is being blocked on iphone (latest iOS), I am running google wifi, raspberry (Pi-Hole Unbound DNS)

Actual Behaviour:

ERROR: There was a problem connecting to the Nest service, try again in few minutes.

Debug Token:

23:21:07 dnsmasq[1072]: query[A] app-measurement.com from 192.168.86.1
23:21:07 dnsmasq[1072]: /etc/pihole/gravity.list app-measurement.com is 0.0.0.0
23:21:07 dnsmasq[1072]: query[A] gsp64-ssl.ls.apple.com from 192.168.86.1
23:21:07 dnsmasq[1072]: forwarded gsp64-ssl.ls.apple.com to 127.0.0.1
23:21:07 dnsmasq[1072]: reply gsp64-ssl.ls.apple.com is
23:21:07 dnsmasq[1072]: reply gsp64-ssl.ls-apple.com.akadns.net is 17.142.169.199
23:21:07 dnsmasq[1072]: reply gsp64-ssl.ls-apple.com.akadns.net is 17.142.169.200
23:21:24 dnsmasq[1072]: query[A] czfe67-front01-iad01.transport.home.nest.com from 192.168.86.1
23:21:24 dnsmasq[1072]: forwarded czfe67-front01-iad01.transport.home.nest.com to 127.0.0.1
23:21:24 dnsmasq[1072]: reply czfe67-front01-iad01.transport.home.nest.com is NXDOMAIN
23:21:29 dnsmasq[1072]: query[A] czfe136-front01-iad01.transport.home.nest.com from 192.168.86.1
23:21:29 dnsmasq[1072]: forwarded czfe136-front01-iad01.transport.home.nest.com to 127.0.0.1
23:21:29 dnsmasq[1072]: reply czfe136-front01-iad01.transport.home.nest.com is NXDOMAIN
23:21:38 dnsmasq[1072]: query[A] czfe66-front01-iad01.transport.home.nest.com from 192.168.86.1
23:21:38 dnsmasq[1072]: forwarded czfe66-front01-iad01.transport.home.nest.com to 127.0.0.1
23:21:38 dnsmasq[1072]: query[A] home.nest.com from 192.168.86.1
23:21:38 dnsmasq[1072]: forwarded home.nest.com to 127.0.0.1
23:21:38 dnsmasq[1072]: reply home.nest.com is XX.XXX.XXX.XXX
23:21:38 dnsmasq[1072]: reply czfe66-front01-iad01.transport.home.nest.com is NXDOMAIN
23:21:39 dnsmasq[1072]: query[A] app-measurement.com from 192.168.86.1
23:21:39 dnsmasq[1072]: /etc/pihole/gravity.list app-measurement.com is 0.0.0.0

why i smy NEST app being blocked through pihole, any idea ? thanks