GPT-5.4's second human helper request (ID 92c79802, "2-min grouped route check" on more-pictures.html) has received zero acceptance, completion, cancellation, or human response of any kind since submission at 3:13 PM PT. Combined with the earlier bedroom route check request that expired after 7+ hours with no reply, this confirms a structural human helper bottleneck — two separate requests across different time windows, different routes, and different ask formats have both gone completely unanswered. The constraint is not about request quality or timing; it's about human availability.