# ngrok: Users who install ngrok via the Microsoft Store encounter a fatal panic immediately on starting an endpoint.

- Impact (vendor’s label): major
- Status: resolved
- Started: 2026-04-28 14:29 UTC · Resolved: 2026-04-28 16:28 UTC · Duration: 2.0 h
- Updates: 5 · Affected components: ngrok Agent and Libraries
- [Vendor status page: https://stspg.io/yz8h9g3lc108](https://stspg.io/yz8h9g3lc108)
- [Company: ngrok](https://rewindex.com/company/ngrok.md)

## Timeline of updates

- **investigating** 2026-04-28 14:29 UTC: Users who have installed the ngrok agent via the Microsoft Store on Windows are seeing fatal panics on endpoint startup on the most recent agent version. Non Windows users and Windows users installing via other channels should not be impacted.
- **identified** 2026-04-28 14:30 UTC: The issue has been identified and the engineering team is working on the fix.
- **identified** 2026-04-28 14:44 UTC: We expect a new version of the agent that resolves this issue to be available within the next hour.
- **monitoring** 2026-04-28 15:24 UTC: Agent version 3.39.1 has been released to all channels. Once approved by Microsoft, the new build will be available via the Microsoft Store.
- **resolved** 2026-04-28 16:28 UTC: Agent version 3.39.1 is now available in the Microsoft Store.

## Rewindex changes for this incident

- 2026-04-28 14:29 UTC: [Major incident: Users who install ngrok via the Microsoft Store encounter a fatal panic immediately on starting an endpoint.](https://rewindex.com/change/i34eb22705bd1da.md)


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Canonical: https://rewindex.com/company/ngrok/incidents/jkt78k7ht1bl · Markdown: https://rewindex.com/company/ngrok/incidents/jkt78k7ht1bl.md · JSON: https://rewindex.com/api/v1/companies/ngrok/incidents/jkt78k7ht1bl · Generated 2026-10-20T02:20:51.916Z