Resolved

Partial degradation of Marqo indexes

We are seeing a spike in 5xx responses for Marqo index API requests. Initial estimates are that less than 10% of requests are affected.

Resolved

Personalised search requests returning 4xx errors

Between 02:29 and and 03:33 UTC, 2026 April 14, personalised search requests (search requests that include userId, sessionIds) returned 4xx errors. Non-personalised search requests were unaffected.

Investigation revealed that a faulty deployment caused personalised search requests to be rejected.