My user is in the App Manager group, and since the app is no longer in the App Store Connect (even if I wanted to add directly there, it doesn't fetch the bundle ID when I do "New App") it isn't assigned to me. And I get this exact problem, when I try to validate the build in Xcode.
I've verified if the bundle identifier exists in my account, and it does, so I don't really understand what could be the program.
What do you think it is?