Bug Test Runner Api - EndTime and StartTime unset with in a standalone test

Hello,

I'm having an issue with the Test Runner Api from Unity Test Framework. When the tests are launched as a standalone application, for instance on platform StandaloneWindows64, the EndTime and StartTime return by the ITestResultAdaptor argument are set to 0001-01-01 00:00:00 in function RunFinished and TestFinished. However when the tests are launched from the editor, these variables are set with a valid time.

To give some perspective, i'm using the test runner api to generate a test report with a customized format. I registred my ICallbacks interface with this code:

Code (CSharp):

1. [InitializeOnLoad]
2. class RegisterTestReporter
3. {
4.  
5.     static RegisterTestReporter()
6.     {
7.         EditorApplication.update += Update;
8.     }
9.  
10.     static void Update()
11.     {
12.         var api = ScriptableObject.CreateInstance<TestRunnerApi>();
13.         CustomReporterRunner reporter = new CustomReporterRunner();
14.         api.RegisterCallbacks(reporter);
15.     }
16. }

Does anyone have insight on what's happening? For info I tried UTF 1.31 and 1.33 and Unity 2021.3.1f1 with the same result.
Thank you