The 600 ms speaker warmup and 250 ms hang-listen post-announced()
sleep were intended to give the relay more time to prime its
per-broadcast subscribe-pump. Sweep showed they actually made
things WORSE — combined 0/5 pass (down from 2/5 with the
single-subscribe fix alone) — because the cumulative ~850 ms
of pre-subscribe delay shrank the catalog-read window into the
speaker's tear-down region.
Lesson recorded: any mitigation that adds pre-subscribe delay
hurts more than it helps. Future attempts should target the
relay's subscribe-routing race directly (upstream fix, RUST_LOG
trace, or version bump) rather than smoothing it over with
delays.
Claude
6cc27c9e50