Squarespace change history: Acuity Scheduling Service Disruption

Squarespace reported a major Acuity Scheduling disruption that prevented existing users from creating new Acuity trials; it warned all users and services may be affected. The incident started at 2026-05-19 17:06 UTC and was resolved at 2026-05-19 17:35 UTC, lasting 29 min. Engineering identified the root cause and reported implementing a fix, without specifying details.