# Census: Some syncs failing with "T.cast: Expected type T::Struct, got type TrueClass"

> Census status incident “Some syncs failing with "T.cast: Expected type T::Struct, got type TrueClass"” on 2025-04-21: impact none (vendor’s label), 0 min, 1 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/census/incidents/fsfvqhd02hf9
Last updated: 2025-04-21T19:33:26Z

- Impact (vendor’s label): none
- Status: resolved
- Started: 2025-04-21 19:33 UTC · Resolved: 2025-04-21 19:33 UTC · Duration: 0 min
- Updates: 1 · Affected components: Sync Engine
- [Vendor status page: https://stspg.io/lq5hn2cv7dh6](https://stspg.io/lq5hn2cv7dh6)
- [Company: Census](https://rewindex.com/company/census.md)

## Timeline of updates

- **resolved** 2025-04-21 19:33 UTC: A recent code change introduced a bug resulting in some syncs failing with the message "T.cast: Expected type T::Struct, got type TrueClass". This impacted sync runs where there were no incremental changes identified and the source connection utilizes the Advanced Sync Engine. We identified the problematic change, and have reverted. Syncs are now running successfully.

## Cite this

Status incident (vendor impact label: none) posted by Census, started 2025-04-21 19:33 UTC, resolved after 0 min, 1 update(s).

- Canonical URL: https://rewindex.com/company/census/incidents/fsfvqhd02hf9
- Citation: Census, “Some syncs failing with "T.cast: Expected type T::Struct, got type TrueClass"” (2025-04-21 19:33 UTC). Archived by Rewindex: https://rewindex.com/company/census/incidents/fsfvqhd02hf9 (CC BY 4.0).
- Markdown link: `[Census: Some syncs failing with "T.cast: Expected type T::Struct, got type TrueClass" (2025-04-21)](https://rewindex.com/company/census/incidents/fsfvqhd02hf9)`


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Canonical: https://rewindex.com/company/census/incidents/fsfvqhd02hf9 · Markdown: https://rewindex.com/company/census/incidents/fsfvqhd02hf9.md · JSON: https://rewindex.com/api/v1/companies/census/incidents/fsfvqhd02hf9 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T14:19:48.468Z