[Tests] LogsPipelineUnitTests TestLogsPipeline fails with Assert.Equal() Failure

## Build Information
Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1483640
Build error leg or test failing: Microsoft.Diagnostics.Monitoring.EventPipe.UnitTests.LogsPipelineUnitTests.TestLogsPipeline

```json
{
"ErrorMessage": "Assert.Equal() Failure: Values differ\\nExpected: 5\\nActual:",
"BuildRetry": false,
"ExcludeConsoleLog": false
}
```

`Assert.Equal() Failure: Values differ\nExpected: 5\nActual: 2`
This line might be https://github.com/dotnet/diagnostics/blob/33fbc9520aca73c454d700bba479e744d969dcb8/src/tests/Microsoft.Diagnostics.Monitoring.EventPipe/LogsPipelineUnitTests.cs#L68

The test failed on an unrelated PR on MacOS_x64_Debug `Microsoft.Diagnostics.Monitoring.EventPipe.UnitTests.LogsPipelineUnitTests.TestLogsPipeline(config: projectk.sdk.prebuilt.10.0.2)` https://dev.azure.com/dnceng-public/public/_build/results?buildId=1224196&view=ms.vss-test-web.build-test-results-tab&runId=33919198&resultId=100117&paneView=debug

The console output looks like
```
[12/8/2025 8:52:57 PM] Test runner created
Running Process: /Users/runner/work/1/s/artifacts/dotnet-test/dotnet --fx-version 10.0.2 /Users/runner/work/1/s/artifacts/bin/EventPipeTracee/Debug/net10.0/EventPipeTracee.dll 12a52368-197c-48b4-8895-e208ec15f021 LoggerRemoteTest
Working Directory:
Additional Environment Variables: DOTNET_ROOT=/Users/runner/work/1/s/artifacts/dotnet-test
{
[00:00.313] 10921 Successfully started process
[00:00.316] 10921 WaitForTracee
00:00.277: 10921 EventPipeTracee: DiagMetrics False UseActivitySource False
00:00.280: 10921 EventPipeTracee: DuplicateNameMetrics False
00:00.280: 10921 EventPipeTracee: start process
00:00.280: 10921 EventPipeTracee: connecting to pipe
00:00.280: 10921 EventPipeTracee: connected to pipe
[00:00.318] 10921 WaitForTracee: DONE
00:00.668: 10921 EventPipeTracee: 12/8/2025 8:52:58 PM Awaiting start
[00:01.555] 10921 WakeupTracee
[00:01.555] 10921 WakeupTracee DONE
[00:01.555] 10921 WaitForSignal
00:01.519: 10921 12/8/2025 8:52:59 PM Starting test body '42'
00:01.568: 10921 EventPipeTracee: signal end of test data
[00:01.605] 10921 WaitForSignal DONE 31
00:01.569: 10921 12/8/2025 8:52:59 PM Awaiting end
[00:01.949] 10921 WakeupTracee
[00:01.949] 10921 WakeupTracee DONE
00:01.913: 10921 EventPipeTracee 12/8/2025 8:52:59 PM Ending remote test process '42'
}
[00:02.050] 10921 Disposing
[00:02.050] 10921 WakeupTracee
Process 10921 exited 0 (00:02.014 elapsed)

[00:02.051] 10921 WakeupTracee DONE
[00:02.051] 10921 WaitForExitAsync
[00:02.051] 10921 WaitForExitAsync DONE
```

### Known issue validation
**Build: :mag_right:** https://dev.azure.com/dnceng-public/public/_build/results?buildId=1483640
**Error message validated:** `[Assert.Equal() Failure: Values differ\nExpected: 5\nActual:`]
**Result validation:** :white_check_mark: Known issue matched with the provided build.
**Validation performed at:** 6/27/2026 12:21:20 AM UTC

### Report

|Build|Repository|Test|Pull Request|
|---|---|---|---|
|[1596235](https://dev.azure.com/dnceng-public/public/_build/results?buildId=1596235)|dotnet/diagnostics|[Microsoft.Diagnostics.Monitoring.EventPipe.UnitTests.LogsPipelineUnitTests.TestLogsPipeline](https://dev.azure.com/dnceng-public/public/_build/results?buildId=1596235&view=ms.vss-test-web.build-test-results-tab&runId=44066334&resultId=100158)||
|[1589773](https://dev.azure.com/dnceng-public/public/_build/results?buildId=1589773)|dotnet/diagnostics|[Microsoft.Diagnostics.Monitoring.EventPipe.UnitTests.LogsPipelineUnitTests.TestLogsPipeline](https://dev.azure.com/dnceng-public/public/_build/results?buildId=1589773&view=ms.vss-test-web.build-test-results-tab&runId=43889386&resultId=100165)|dotnet/diagnostics#6018|
|[1588331](https://dev.azure.com/dnceng-public/public/_build/results?buildId=1588331)|dotnet/diagnostics|[Microsoft.Diagnostics.Monitoring.EventPipe.UnitTests.LogsPipelineUnitTests.TestLogsPipeline](https://dev.azure.com/dnceng-public/public/_build/results?buildId=1588331&view=ms.vss-test-web.build-test-results-tab&runId=43838374&resultId=100154)|dotnet/diagnostics#5993|
|[1583728](https://dev.azure.com/dnceng-public/public/_build/results?buildId=1583728)|dotnet/diagnostics|[Microsoft.Diagnostics.Monitoring.EventPipe.UnitTests.LogsPipelineUnitTests.TestLogsPipeline](https://dev.azure.com/dnceng-public/public/_build/results?buildId=1583728&view=ms.vss-test-web.build-test-results-tab&runId=43695646&resultId=100170)|dotnet/diagnostics#6000|
|[1582409](https://dev.azure.com/dnceng-public/public/_build/results?buildId=1582409)|dotnet/diagnostics|[Microsoft.Diagnostics.Monitoring.EventPipe.UnitTests.LogsPipelineUnitTests.TestLogsPipeline](https://dev.azure.com/dnceng-public/public/_build/results?buildId=1582409&view=ms.vss-test-web.build-test-results-tab&runId=43654860&resultId=100176)|dotnet/diagnostics#6010|
|[1582271](https://dev.azure.com/dnceng-public/public/_build/results?buildId=1582271)|dotnet/diagnostics|[Microsoft.Diagnostics.Monitoring.EventPipe.UnitTests.LogsPipelineUnitTests.TestLogsPipeline](https://dev.azure.com/dnceng-public/public/_build/results?buildId=1582271&view=ms.vss-test-web.build-test-results-tab&runId=43652784&resultId=100156)|dotnet/diagnostics#6004|
|[1579729](https://dev.azure.com/dnceng-public/public/_build/results?buildId=1579729)|dotnet/diagnostics|[Microsoft.Diagnostics.Monitoring.EventPipe.UnitTests.LogsPipelineUnitTests.TestLogsPipeline](https://dev.azure.com/dnceng-public/public/_build/results?buildId=1579729&view=ms.vss-test-web.build-test-results-tab&runId=43576810&resultId=100172)|dotnet/diagnostics#5980|
|[1578684](https://dev.azure.com/dnceng-public/public/_build/results?buildId=1578684)|dotnet/diagnostics|[Microsoft.Diagnostics.Monitoring.EventPipe.UnitTests.LogsPipelineUnitTests.TestLogsPipeline](https://dev.azure.com/dnceng-public/public/_build/results?buildId=1578684&view=ms.vss-test-web.build-test-results-tab&runId=43536566&resultId=100174)|dotnet/diagnostics#5991|
|[1577892](https://dev.azure.com/dnceng-public/public/_build/results?buildId=1577892)|dotnet/diagnostics|[Microsoft.Diagnostics.Monitoring.EventPipe.UnitTests.LogsPipelineUnitTests.TestLogsPipeline](https://dev.azure.com/dnceng-public/public/_build/results?buildId=1577892&view=ms.vss-test-web.build-test-results-tab&runId=43511718&resultId=100169)|dotnet/diagnostics#5980|
|[1571666](https://dev.azure.com/dnceng-public/public/_build/results?buildId=1571666)|dotnet/diagnostics|[Microsoft.Diagnostics.Monitoring.EventPipe.UnitTests.LogsPipelineUnitTests.TestLogsPipeline](https://dev.azure.com/dnceng-public/public/_build/results?buildId=1571666&view=ms.vss-test-web.build-test-results-tab&runId=43282312&resultId=100161)|dotnet/diagnostics#5981|
|[1569701](https://dev.azure.com/dnceng-public/public/_build/results?buildId=1569701)|dotnet/diagnostics|[Microsoft.Diagnostics.Monitoring.EventPipe.UnitTests.LogsPipelineUnitTests.TestLogsPipeline](https://dev.azure.com/dnceng-public/public/_build/results?buildId=1569701&view=ms.vss-test-web.build-test-results-tab&runId=43219988&resultId=100159)|dotnet/diagnostics#5981|
|[1565590](https://dev.azure.com/dnceng-public/public/_build/results?buildId=1565590)|dotnet/diagnostics|[Microsoft.Diagnostics.Monitoring.EventPipe.UnitTests.LogsPipelineUnitTests.TestLogsPipeline](https://dev.azure.com/dnceng-public/public/_build/results?buildId=1565590&view=ms.vss-test-web.build-test-results-tab&runId=43106818&resultId=100152)|dotnet/diagnostics#5976|
|[1565556](https://dev.azure.com/dnceng-public/public/_build/results?buildId=1565556)|dotnet/diagnostics|[Microsoft.Diagnostics.Monitoring.EventPipe.UnitTests.LogsPipelineUnitTests.TestLogsPipeline](https://dev.azure.com/dnceng-public/public/_build/results?buildId=1565556&view=ms.vss-test-web.build-test-results-tab&runId=43105530&resultId=100158)|dotnet/diagnostics#5976|
|[1565330](https://dev.azure.com/dnceng-public/public/_build/results?buildId=1565330)|dotnet/diagnostics|[Microsoft.Diagnostics.Monitoring.EventPipe.UnitTests.LogsPipelineUnitTests.TestLogsPipeline](https://dev.azure.com/dnceng-public/public/_build/results?buildId=1565330&view=ms.vss-test-web.build-test-results-tab&runId=43102708&resultId=100169)|dotnet/diagnostics#5976|
|[1561156](https://dev.azure.com/dnceng-public/public/_build/results?buildId=1561156)|dotnet/diagnostics|[Microsoft.Diagnostics.Monitoring.EventPipe.UnitTests.LogsPipelineUnitTests.TestLogsPipeline](https://dev.azure.com/dnceng-public/public/_build/results?buildId=1561156&view=ms.vss-test-web.build-test-results-tab&runId=42979328&resultId=100170)|dotnet/diagnostics#5970|
|[1556588](https://dev.azure.com/dnceng-public/public/_build/results?buildId=1556588)|dotnet/diagnostics|[Microsoft.Diagnostics.Monitoring.EventPipe.UnitTests.LogsPipelineUnitTests.TestLogsPipeline](https://dev.azure.com/dnceng-public/public/_build/results?buildId=1556588&view=ms.vss-test-web.build-test-results-tab&runId=42840162&resultId=100161)|dotnet/diagnostics#5966|
#### Summary
|24-Hour Hit Count|7-Day Hit Count|1-Month Count|
|---|---|---|
|1|3|16|