Quarantine Microsoft.AspNetCore.Components.E2ETest.Tests.VirtualizationTest.InitialIndex_PendingGrowth_TallItemsBeforeTarget_Kee [Content t

## Failing Test(s)

`Microsoft.AspNetCore.Components.E2ETest.Tests.VirtualizationTest.InitialIndex_PendingGrowth_TallItemsBeforeTarget_KeepsTargetAligned` (also observed under the `ServerVirtualizationTest` subclass)

## Failure Frequency

Failed 2 times over the past 30 days.

## Error Message

```text
OpenQA.Selenium.BrowserAssertFailedException : Xunit.Sdk.NotEmptyException: Assert.NotEmpty() Failure: Collection was empty
at Xunit.Assert.NotEmpty(IEnumerable collection) in /_/src/xunit.assert/Asserts/CollectionAsserts.cs:line 539
at Microsoft.AspNetCore.E2ETesting.WaitAssert.<>c__DisplayClass18_0.b__0() in /mnt/vss/_work/1/s/src/Shared/E2ETesting/WaitAssert.cs:line 80
at Microsoft.AspNetCore.E2ETesting.WaitAssert.<>c__DisplayClass23_0`1.b__0(IWebDriver _) in /mnt/vss/_work/1/s/src/Shared/E2ETesting/WaitAssert.cs:line 129
Browser URL: (127.0.0.1/redacted)
Encountered browser errors
[2026-09-02T11:15:58Z] [Info] (127.0.0.1/redacted) 86:16 "Blazor server-side"
[2026-09-02T11:15:58Z] [Info] (127.0.0.1/redacted) 0:68411 "[2026-09-02T11:15:58.961Z] Information: Normalizing '_blazor' to '(127.0.0.1/redacted)
[2026-09-02T11:15:58Z] [Info] (127.0.0.1/redacted) 0:68411 "[2026-09-02T11:15:58.965Z] Information: WebSocket connected to (127.0.0.1/redacted)
```

## Stacktrace

```text
at Microsoft.AspNetCore.E2ETesting.WaitAssert.WaitAssertCore[TResult](IWebDriver driver, Func`1 assertion, TimeSpan timeout) in /mnt/vss/_work/1/s/src/Shared/E2ETesting/WaitAssert.cs:line 160
at Microsoft.AspNetCore.Components.E2ETest.Tests.VirtualizationTest.InitialIndex_PendingGrowth_TallItemsBeforeTarget_KeepsTargetAligned() in /_/src/Components/test/E2ETest/Tests/VirtualizationTest.cs:line 5611
at InvokeStub_VirtualizationTest.InitialIndex_PendingGrowth_TallItemsBeforeTarget_KeepsTargetAligned(Object, Object, IntPtr*)
at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)
----- Inner Stack Trace -----
at Microsoft.AspNetCore.E2ETesting.WaitAssert.<>c__DisplayClass18_0.b__0() in /mnt/vss/_work/1/s/src/Shared/E2ETesting/WaitAssert.cs:line 80
at Microsoft.AspNetCore.E2ETesting.WaitAssert.<>c__DisplayClass23_0`1.b__0(IWebDriver _) in /mnt/vss/_work/1/s/src/Shared/E2ETesting/WaitAssert.cs:line 129
```

## Logs

```text
OpenQA.Selenium.BrowserAssertFailedException : Xunit.Sdk.NotEmptyException: Assert.NotEmpty() Failure: Collection was empty
Browser URL: (127.0.0.1/redacted)
Screen shot captured at '/[REDACTED].png'
Encountered browser errors
[2026-09-02T11:15:58Z] [Info] (127.0.0.1/redacted) 86:16 "Blazor server-side"
[2026-09-02T11:15:58Z] [Info] (127.0.0.1/redacted) 0:68411 "[2026-09-02T11:15:58.961Z] Information: Normalizing '_blazor' to '(127.0.0.1/redacted)
[2026-09-02T11:15:58Z] [Info] (127.0.0.1/redacted) 0:68411 "[2026-09-02T11:15:58.965Z] Information: WebSocket connected to (127.0.0.1/redacted)
Network responses (_framework, _blazor, and errors) omitted for brevity — see full Helix console log for the complete trace.
```

(A representative excerpt is shown above; the full Helix console/work-item log for this failure was not retrievable from within this run's environment.)

## Build

https://dev.azure.com/dnceng-public/public/_build/results?buildId=1578444&view=results

> Generated by [Daily Test Quarantine Management](https://github.com/dotnet/aspnetcore/actions/runs/34110446127) · copilot · auto · 607.1 AIC · ⌖ 13.3 AIC · ⊞ 4.5K · [◷](https://github.com/search?q=repo%3Adotnet%2Faspnetcore+is%3Aissue+%22gh-aw-workflow-call-id%3A+dotnet%2Faspnetcore%2Ftest-quarantine%22&type=issues)