# Mixpanel: Failure to store specific event formats for a subset of projects

> Mixpanel status incident “Failure to store specific event formats for a subset of projects” on 2023-03-29: impact none (vendor’s label), 0 min, 1 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/mixpanel/incidents/4b0h00g5hfvs
Last updated: 2023-03-29T07:00:00Z

- Impact (vendor’s label): none
- Status: resolved
- Started: 2023-03-29 07:00 UTC · Resolved: 2023-03-29 07:00 UTC · Duration: 0 min
- Updates: 1
- [Vendor status page: https://www.mixpanelstatus.com/incidents/4b0h00g5hfvs](https://www.mixpanelstatus.com/incidents/4b0h00g5hfvs)
- [Company: Mixpanel](https://rewindex.com/company/mixpanel.md)

## Timeline of updates

- **resolved** 2023-03-29 07:00 UTC: We identified an issue in the latest versions of our web and mobile SDKs that caused the SDKs to send events to our /track API in a format that our servers failed to ingest. The issue had a chance to occur when the SDK's identify function was called with the current Distinct ID as an argument (e.g. mixpanel.identify(mixpanel.get\_distinct\_id())), leading to events from that client device session not being properly received by Mixpanel. This issue was most likely to occur with our iOS Swift SDK. The issue was fully resolved with server-side changes on March 29th, 8:15PM PST. No SDK updates are necessary. Customers using the latest SDK versions before March 29th could be missing events sent from client devices that encountered this issue.

_From the vendor’s published history: only the final update text is available for incidents before Rewindex began polling this page._

## Cite this

Status incident (vendor impact label: none) posted by Mixpanel, started 2023-03-29 07:00 UTC, resolved after 0 min, 1 update(s).

- Canonical URL: https://rewindex.com/company/mixpanel/incidents/4b0h00g5hfvs
- Citation: Mixpanel, “Failure to store specific event formats for a subset of projects” (2023-03-29 07:00 UTC). Archived by Rewindex: https://rewindex.com/company/mixpanel/incidents/4b0h00g5hfvs (CC BY 4.0).
- Markdown link: `[Mixpanel: Failure to store specific event formats for a subset of projects (2023-03-29)](https://rewindex.com/company/mixpanel/incidents/4b0h00g5hfvs)`


---
Canonical: https://rewindex.com/company/mixpanel/incidents/4b0h00g5hfvs · Markdown: https://rewindex.com/company/mixpanel/incidents/4b0h00g5hfvs.md · JSON: https://rewindex.com/api/v1/companies/mixpanel/incidents/4b0h00g5hfvs · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T15:27:52.831Z