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011edd3c99
PacketQueue::countBefore() and PacketQueue::get() use unsigned comparison (_schedule_table[j] > now) to check if a packet is scheduled for the future. This breaks when millis() wraps around after ~49.7 days: packets scheduled just before the wrap appear to be in the far future and get stuck in the queue. Use signed subtraction instead, matching the approach already used by Dispatcher::millisHasNowPassed(). This correctly handles the wraparound for time differences up to ~24.8 days in either direction, well beyond the maximum queue delay of 32 seconds.