Can't subscribe to a few Bluesky private profiles

Hello,

I’ve noticed as I migrate to Bluesky that you can paste the profile link in and 9/10 times it will fetch it no problem.

I’ve noticed a few profiles, I’ve confirmed they are public, consistently fail to add with the error “This address does not point to an RSS feed or a website with an RSS feed.”

Examples:

Any idea whats going on here?

Thanks,
Andrew

First one is a private feed:

As is the second one:

My bad.