Same issue here, contacted support a week ago and have gotten nothing but a "your issue has been escalated" email, with no follow up since. Meanwhile, my projects have ground to a halt.

@DTS Engineer Same account-wide issue on my team (Team ID 53D63G4KNN, Individual account). Earlier TestFlight builds across my apps were marked Expired before their 90-day window (one uploaded Oct 4, 2026 was Expired by Oct 9). New builds process to VALID / IN_BETA_TESTING and appear in TestFlight with 90 days remaining, but internal installs fail with "The requested app is not available or doesn't exist." Membership and all agreements are Active, nothing pending. Feedback: FB25171013 (sysdiagnose attached) Developer Support case: 102991651677 (opened Oct 9, 2026, no reply yet) Affected App IDs include 6821114300 and 6822148194 Could you please route this to the TestFlight team? Thank you.