System.ComponentModel.TypeConverter.Tests.WorkItemExecution failing

[rcj1]

Build Information

Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1102173
Build error leg or test failing: System.ComponentModel.TypeConverter.Tests.WorkItemExecution
Pull request: #117684

Error Message

Fill the error message using step by step known issues guidance.

{
  "ErrorMessage": "",
  "ErrorPattern": "Assert failure\(PID .*, Thread: .*\): Thread::IsObjRefValid\(&objref\)",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}