I am still running into issues with Gatsby Cloud when it comes to building sites. Currently there is no option for me as the user other than just wait until builds are working again (talking about queued builds do not start or port is already used issues).
This prevents sites from being updated and there is currently no workaround.
Netlify has an option to upload a directory or zip. That way we could build the site locally (which always works) and upload it directly.