On Meta Quest 3S, approximately 50% of cold launches in Shared Mode (Quest for Business) result in the app being killed due to a shell focus-arbitration race condition. This occurs when the KioskDuiActivity overlay auto-closes via "System Defined Closure," triggering competing VisibilityRequestController requests. Specifically, TravelToHome (priority 55) takes precedence over ReturnFromImmersiveApp (priority 50), causing the app process to be killed with signal 9. Notably, subsequent launches with the same overlay/close sequence succeed without triggering TravelToHome. The race condition happens within 170ms of the panel closure event.