SERVFAIL response from 1.1.1.1 domain lookup?

#1

When resolving the domain www.lancaster.ac.uk the 1.1.1.1 servers return a SERVFAIL status for instead of a NOERROR?

; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.68.rc1.el6_10.1 <<>> A +additional www.lancaster.ac.uk. @1.1.1.1
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 65413
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;www.lancaster.ac.uk.		IN	A

;; ANSWER SECTION:
www.lancaster.ac.uk.	43200	IN	CNAME	www.lancs.ac.uk.
www.lancs.ac.uk.	853	IN	A	148.88.65.80

;; Query time: 202 msec
;; SERVER: 1.1.1.1#53(1.1.1.1)
;; WHEN: Sat Mar 30 14:46:19 2019
;; MSG SIZE  rcvd: 77
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#2

I believe that is a known issue

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