We have released and verified the fix and all builds are running normally again. For the affected users: we are sorry about the delay in getting your updates published. And again, thank you for your understanding and patience!

We have identified the issue and are working on a fix. We expect all builds to start working as expected shortly. Thank you for your patience!

We are investigating an issue where some sites are failing to build correctly. This affects a subset of sites which are using SSH URLs and deploy key authentication.