1 We are having this same issues with some apps but not all of them. Triple checked distribution cert and provisioning profiles. We are uploading using altool via command line. Other apps work just fine as they always have, but a few are failing to upload. This is the error we are currently receiving (redacted info): ** Error: code -18000 (ERROR ITMS-90034: "Missing or invalid signature. The bundle 'com.mybundle.id' at bundle path 'Payload/My App Name.app' is not signed using an Apple submission certificate.") I have a ticket out with Apple on this, and will update this thread with any findings.