I am a paying, verified Developer since years and I regularily renew my account, my profiles, my certificates, XCode and I always verify my apps with the app store.
But distributing a newly updated app signed with my developer ID now shows the "untrusted developer" warning for my clients.
My app is signed, it is verified with the App store, XCode and System is on the latest version, my keychain has no expired certificates, all is in perfect order, verifying with the app store and exporting the same archive revealed not a single issue, warning or hickup. What is wrong here? Are there any other people having the same problem?