Iterable change history: Ingestion Delay on Clusters 100 and Above

Iterable reported a critical Global API Ingestion delay on Clusters 100 and above from 2025-03-14 16:56 UTC to 2025-03-14 21:13 UTC, lasting 4 h 16 min. User updates, list uploads, user deletion and event processing were delayed; email sends and journey processing could also be affected. Engineering deployed a fix and confirmed recovery; no data was dropped.