I've been enabling DNSSEC for all domains on my account. They are all using external name servers.
When going to Manage DNS -> DNSSEC -> Add new DS record, the record appears to be added and saved (I get the "Features may be unavailable while updates are pending" message).
After a few minutes, the page refreshes, and the DS record is removed.
This is only happening for my .co.uk domains - I've successfully run through this process 15+ time for .com, .net, .org and .info domains.
Hi @birkett26, thanks for posting.
There was a brief issue with making updates and changes to some domains. If you're still having trouble, I suggest calling/chatting with Support if you are still having trouble making updates.