I have the same issue at the moment with Xcode 26 beta 3. Neither iOS or visionOS will download. Did restart my Mac and relaunched Xcode several times.

It's been 20 minutes on my end and still nothing...

So I finally got it to work. Here's what I did (no idea if all of these were required): Signed out from App Store Connect in Safari Cleared all *.apple.com website data Restarted The "Get" button finally appeared in Components. On my other Mac, signing out and closing Safari fixed the issue.

Hi Albert, Thanks for the clarification. In past cycles, RC builds have typically been permitted for submission within a few hours, so this situation is a bit unusual. I’m assuming iOS 26.2 will likely ship next week, but ASC is also warning developers that they may be overwhelmed during the holidays and encouraging early submissions — which puts us in a difficult position when RC uploads aren’t yet allowed. Being able to submit with the RC would let us validate TestFlight builds ahead of time and ensure a smooth transition once 26.2 is released. At the moment, it isn’t even possible to test distribution builds, which makes it hard to prepare properly. Could you shed some light on why RC submissions are blocked this time around? Thanks again for your help.