One of them i do not recognize and I am unable to edit.
This is giving me some issues getting my SSL/TLS certificate through Netlify, and now my site is down.
I've called support, as on hold for 20 minutes, then give the option to be called back. I asked to be called back, about 30 minutes later I received a call, and sat on hold for another 20 minutes. I hung up.
Locked A records generally come from the domain being forwarded, or if the "Use My Domain" wizard was used to connect to an existing site. Remove the forward or connection if you want to manually edit the DNS.