[Due for payment 2025-03-21] [$250] Chat - Unable to scroll to the top when scrolling up at moderate speed

[mitarachim]

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Version Number: 9.1.11-1
Reproducible in staging?: Yes
Reproducible in production?: No
If this was caught on HybridApp, is this reproducible on New Expensify Standalone?: N/A
If this was caught during regression testing, add the test name, ID and link from TestRail: Exp
Email or phone of affected tester (no customers): applausetester+h9ne229@applause.expensifail.com
Issue reported by: Applause Internal Team
Device used: Mac 15.3 / Chrome
App Component: Chat Report View

Action Performed:

1. Go to staging.new.expensify.com
2. Go to chat.
3. Send a few attachments (at least three on web & desktop, at least four on Android & iOS) to the chat so that the chat is scrollable.
4. Scroll up at a moderate speed (not too fast and not too slow).

Expected Result:

Chat will be scrolled to the top smoothly.

Actual Result:

The chat is stuck in the middle when scrolling up at a moderate speed.

Workaround:

Unknown

Platforms:

• Android: Standalone
• Android: HybridApp
• Android: mWeb Chrome
• iOS: Standalone
• iOS: HybridApp
• iOS: mWeb Safari
• MacOS: Chrome / Safari
• MacOS: Desktop

Screenshots/Videos

Bug6766902_1741662544157.iOS.mp4

Bug6766902_1741662366740.20250311_110516.mp4

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Issue Owner

Current Issue Owner: @jliexpensify

[melvin-bot]

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

[melvin-bot]

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

[melvin-bot]

Triggered auto assignment to @jliexpensify (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.

[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.

[jliexpensify]

@MariaHCD I think this is definitely an issue - I can't reproduce the issue exactly as Applause have written the steps, but I noticed that when I scroll up, I can never reach the top. It's just a constant scroll up, like in this video:

2025-03-11_15-21-56.mp4