Domain Transfer / "Already on Cloudflare" error

#1

When I visit the Cloudflare Control Panel / Domain Transfer panel, I see the error for my domain:

“We’re unable to transfer the following domains”
<mydomain.tld> Already on Cloudflare

Surely this shouldn’t be an error as the transfer has already succeeded?

This also prevents me from transferring other domains.

Is there anything I need to do?

#2

I presume you have transferred the domain earlier to Cloudflare, right? In that case it would seem the transfer completed but still kind of got stuck. Best route is to open a support ticket.