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

- Provider: [ngrok](https://down.guide/ngrok)
- Level: confirmed
- Impact: Partial outage
- lasted 1h 59m
- started 2026-04-28 14:29 UTC
- ngrok Agent and Libraries
- id: DWN-3ceb91b786
- Official page: https://stspg.io/yz8h9g3lc108

## Updates from ngrok
### 2026-04-28 14:29 UTC: investigating
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.

### 2026-04-28 14:30 UTC: identified
The issue has been identified and the engineering team is working on the fix.

### 2026-04-28 14:44 UTC: identified
We expect a new version of the agent that resolves this issue to be available within the next hour.

### 2026-04-28 15:24 UTC: monitoring
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.

### 2026-04-28 16:28 UTC: resolved
Agent version 3.39.1 is now available in the Microsoft Store.

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