Google Cloud DNS suddenly returns Got SERVFAIL reply from ... trying next server

[NandoLambrusco]

Hi,

i have 2 projects in google cloud A and B.
In project A there were my DNS settings for 2 domains, e.g.

 - testA.mydomain.com
 - testB.mydomain.com

This domain was bound to a static ip address.

Everything fine so far.

Then i decided to move both A records: (testA.mydomain.com, testB.mydomain.com) from project A to project B cloud dns settings.

testA.app.mydomain.com works like before, but testB.app.mydomain.com is broken,
nslookup returns:

;; Got SERVFAIL reply from fe80::1%6, trying next server

Greetings
Nando

[Andre_Fiesco]

Could you please provide enough information to try to replicate the error you are getting?

I found this serverfault question that involves the error you are getting and was caused by an error in the reverse zone file.