[Due for payment 2025-07-30] [Due for payment 2025-07-28] Login - App crashes when open same account in new tab

[jponikarchuk]

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Version Number: 9.1.83-0
Reproducible in staging?: Yes
Reproducible in production?: No
If this was caught during regression testing, add the test name, ID and link from TestRail: n/a
Email or phone of affected tester (no customers): gocemate+b2153900@gmail.com
Issue reported by: Applause Internal Team
Device used: Lenovo 80ES / Windows 10 Pro
App Component: Left Hand Navigation (LHN)

Action Performed:

1. Login with gmail and finish the onboarding process
2. Open incognito tab> Login with same account as step 1
3. Add the magic code from email
4. Take a look at the main tab

Expected Result:

App should not crash

Actual Result:

App crashes

Workaround:

Unknown

Platforms:

• Android: App
• Android: mWeb Chrome
• iOS: App
• iOS: mWeb Safari
• iOS: mWeb Chrome
• Windows: Chrome
• MacOS: Chrome / Safari
• MacOS: Desktop

Screenshots/Videos

1.mp4

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Issue Owner

Current Issue Owner: @RachCHopkins

[melvin-bot]

Triggered auto assignment to @RachCHopkins (Bug), see https://stackoverflow.com/c/expensify/questions/14418 for more details. Please add this bug to a GH project, as outlined in the SO.

[melvin-bot]

Triggered auto assignment to @Gonals (DeployBlockerCash), see https://stackoverflowteams.com/c/expensify/questions/9980/ for more details.

[melvin-bot]

💬 A slack conversation has been started in #expensify-open-source

[github-actions]

👋 Friendly reminder that deploy blockers are time-sensitive ⏱ issues! Check out the open `StagingDeployCash` deploy checklist to see the list of PRs included in this release, then work quickly to do one of the following:

1. Identify the pull request that introduced this issue and revert it.
2. Find someone who can quickly fix the issue.
3. Fix the issue yourself.

[rushatgabhane]

@BlameGPT please find em culprits

[BlameGPT]

Vibe check failed for these PRs 💅

• Use route preloading functionality from react-navigation 7 to improve user experience by making switching between tabs faster and smoother #65500: Large refactor touches src/libs/actions/Session and completely rewrites root navigator state; a session change triggered by logging in from another tab would re-initialize navigation and can easily throw, causing the first tab to crash.
• Further unify linking between standalone NewDot and HybridApp #65506: PR alters deep-link and Session handling logic, modifying Session/index.ts and navigation flow, so a concurrent login that updates session data could hit the new code path and crash the already-open tab.

If not above, check these

• Remove remaining withOnyx HOCs from the project | Batch 6 #66124: Refactors multiple sign-in pages from HOCs to hooks and changes Session helper calls; these changes run when the second tab logs in and may introduce an unhandled state in the original tab leading to a crash.

[izarutskaya]

This issue is not repro any more on Windows/Chrome
Build 9.1.83-1

Recording.5797.mp4