Upstash change history: Message Persistence Issue — QStash us-east-1

Upstash reported a major QStash message-persistence disruption in us-east-1 and said a fix restored service. The listed start is 2026-08-28 22:56 UTC, but resolution is recorded as 2026-08-28 22:20 UTC and the update describes disruptions between 22:20 and 22:33 UTC; duration is unknown.