Log filled with CannotCreateRecordDueToCNameNamingRestriction

[jachin84]

My logs are filling with the below message even though external-dns has correctly added the DNS records in question. Any idea what's going on?

time="2024-07-11T05:32:59Z" level=info msg="Updating TXT record named 'cname-app' to '\"heritage=external-dns,external-dns/owner=***,external-dns/resource=ingress/***/prod-frontend\"' for Azure DNS zone 'domain.com'."
time="2024-07-11T05:33:58Z" level=info msg="Updating CNAME record named 'app' to 'appgw.domain.com' for Azure DNS zone 'domain.com'."
time="2024-07-11T05:33:59Z" level=info msg="Updating TXT record named 'app' to '\"heritage=external-dns,external-dns/owner=***,external-dns/resource=ingress/***/prod-frontend\"' for Azure DNS zone 'domain.com'."
time="2024-07-11T05:33:59Z" level=error msg="Failed to update TXT record named 'app' to '\"heritage=external-dns,external-dns/owner=***,external-dns/resource=ingress/***/prod-frontend\"' for DNS zone 'domain.com': PUT https://management.azure.com/subscriptions/***/resourceGroups/dns/providers/Microsoft.Network/dnsZones/domain.com/TXT/app\n--------------------------------------------------------------------------------\nRESPONSE 409: 409 Conflict\nERROR CODE: Conflict\n--------------------------------------------------------------------------------\n{\n  \"code\": \"Conflict\",\n  \"message\": \"The record could not be created because a CNAME record with the same name already exists in this zone.\",\n  \"details\": [\n    {\n      \"code\": \"CannotCreateRecordDueToCNameNamingRestriction\",\n      \"message\": \"The record could not be created because a CNAME record with the same name already exists in this zone.\"\n    }\n  ]\n}\n--------------------------------------------------------------------------------\n"
time="2024-07-11T05:33:59Z" level=info msg="Updating TXT record named 'cname-app' to '\"heritage=external-dns,external-dns/owner=***,external-dns/resource=ingress/***/prod-frontend\"' for Azure DNS zone 'domain.com'."

[jachin84]

I'm thinking this is a bug?