promise.allSettled( )

allSettled is the dashboard version of fan-in: you want every job's outcome, even when some fail. A status widget must not vanish because one tile errored. Naive move Reuse Promise. all. One rejection nukes the whole batch and you lose the successes. Where it breaks Callers need { status, value } or { status, reason } per slot. Empty input still resolves to []. The outer promise must never reject. The fix For each input, attach both fulfill and reject handlers that write a settled descriptor at that index and bump a counter. When the counter hits length, resolve with the descriptors — never reject the outer promise. Remember: allSettled never rejects the outer promise; each slot carries its own status.