How can I check AutomationTest coverage reports?

Hello.
I am trying to check the code coverage report regarding the C++ source for my project.
I am trying to use dotCover, which is described as compatible.

Before trying it on my own project, I created a simple blank project and tried it there.

However, I could not check the coverage report even after creating and building a simple AutomationTest based on Epic’s documentation. (The Test itself was recognized and succeeded).
The test I created does not show up in UnitTestCoverageExplorer.

Has anyone been able to create an AutomationSpec or AutomationTest and check the coverage report, other than dotCover?