Cloudflare nameserver to Cloudflare nameserver!

Long days ago, I transfer my domain to Cloudflare, i.e., at present Cloudflare is my domain’s registrant. Recently, I have changed my hosting and this is why I deleted my domain from Cloudflare and tried to add it again. Now, I am advised to change my nameserver to the followings:

Though these nameservers already assigned for my domain,

Still, showing Pending Nameserver Update.

And I am advised to change the nameserver. Is this logical?

Is this my mistake to transfer my domain to Cloudflare?

4 posts were merged into an existing topic: How to point my domain to a Hosting?