[Problem/Bug]: WebView crash in Office JS Addin

What happened?

Our application is an Office JS add-in used in both Excel and Word, and we are experiencing a critical issue during the sign-in process. After the user enters valid credentials, the add-in suddenly crashes and automatically reloads. This prevents users from completing the authentication flow.

msedgewebview2__PID__15792__Date__11_18_2025__Time_11_07_10AM__798__Second_Chance_Exception_C0000005.dmp
msedgewebview2__PID__22292__Date__11_18_2025__Time_11_05_02AM__584__Second_Chance_Exception_C0000005.dmp

Importance

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

Runtime Channel

Stable release (WebView2 Runtime)

Runtime Version

142.0.3595.80

SDK Version

1.0.3351.48

Framework

----Please select----

Operating System

Windows 11

OS Version

26100.7171

Repro steps

Attached dump files.
But our steps to reproduce are:

Sign in user A
Sign out user A
Try Sign in user B - crash

This is not an issue of our application, our sign in process is okk, few days ago it was working correctly.
Just using Task Manager I can clearly see that webview process with our application has been suddenly terminated.

Repros in Edge Browser

No, issue does not reproduce in the corresponding Edge version

Regression

Regression in newer Runtime

Last working version (if regression)

No response