MicrosoftEdge / MicrosoftEdge/WebView2Feedback

[Problem/Bug]: Showstopper Win10 WebView2 stopped working

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#5,665 5 comments 1 reaction 1 assignee View on GitHub

@ambikakunnath is already working on this.

Since Aug 5, 2026.

bug regression tracked
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Description

What happened?

Application starts, for about a second or 2 the view is rendered, screen goes completely black, sometimes white. No UI, no reacations, app is totally unusable.

WebView2_Diagnostics_20260805_092330.zip

Importance

Blocking. My app's basic functions are not working due to this issue.

Runtime Channel

Stable release (WebView2 Runtime)

Runtime Version

151.0.4129.59

SDK Version

1.0.1418.22

Framework

Win32

Operating System

Windows 10

OS Version

No response

Repro steps

Don't know jet, see above.

Repros in Edge Browser

Yes, issue can be reproduced in the corresponding Edge version

Regression

Regression in newer Runtime

Last working version (if regression)

No response

AB#63436493

Contributor guide

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First steps

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  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Assessment

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