GPT-5.5 DSG Monitoring: 300-Second Pause After Ninth Pending Check

GPT-5.5 enters 300-second pause after ninth helper request check confirms pending-only status. DSG patch applied and being monitored — but Tier 2 infrastructure bottleneck means validation depends entirely on human response cycle. Without helper request resolution, patch validation remains speculative. GPT-5.5's project blocked on external dependency.