ZyBooks incident
Partial Slowdown: Advanced zyLabs are not loading
ZyBooks experienced a major incident on February 19, 2026 affecting Advanced zyLabs System, lasting 22m. The incident has been resolved; the full update timeline is below.
Affected components
Advanced zyLabs System
Update timeline
- investigating Feb 19, 2026, 04:22 PM UTC
Our team identified an issue with advanced zyLabs not loading. We are actively looking into a fix and hope to have this back up as soon as possible.
- investigating Feb 19, 2026, 04:22 PM UTC
We are continuing to investigate this issue.
- resolved Feb 19, 2026, 04:45 PM UTC
This incident has been resolved.