Pinecone change history: [Serverless][AWS][us-east-1] 5xx errors on some read path operations

Pinecone reported a major incident causing 5xx errors on some read path operations for Serverless Indexes in AWS us-east-1. It started at 2025-11-24 17:28 UTC and was resolved at 2025-11-24 18:30 UTC, lasting 1 h 1 min. Pinecone reported implementing a fix and monitoring the results before resolution; no cause was stated.