event pipe assertion in slowpatheltleave: ep_event_instance_get_timestamp (event_instance) >= file->last_sorted_timestamp

## Build Information
Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1456440
Build error leg or test failing: profiler/eventpipe/eventpipe/eventpipe.cmd
Pull request: https://github.com/dotnet/runtime/pull/129187

## Error Message

**DO NOT USE JSON BELOW IF THIS IS A BUILD BREAK** otherwise build analysis will allow pull requests to merge that break the build worse. For a build break, do not use this issue form. Make a regular new issue.

Fill the error message using [step by step known issues guidance](https://github.com/dotnet/arcade/blob/main/Documentation/Build%20Analysis/KnownIssueJsonStepByStep.md).

```json
{
"ErrorMessage": "ep_event_instance_get_timestamp (event_instance) >= file->last_sorted_timestamp",
"ErrorPattern": "",
"BuildRetry": false,
"ExcludeConsoleLog": false
}
```

### Known issue validation
**Build: :mag_right:** https://dev.azure.com/dnceng-public/public/_build/results?buildId=1456440
**Error message validated:** `[ep_event_instance_get_timestamp (event_instance) >= file->last_sorted_timestamp`]
**Result validation:** :white_check_mark: Known issue matched with the provided build.
**Validation performed at:** 6/9/2026 10:45:36 PM UTC

### Report
#### Summary
|24-Hour Hit Count|7-Day Hit Count|1-Month Count|
|---|---|---|
|0|0|0|