What steps will reproduce the problem?
Run MbUnit 2.4.2.175 under PartCover with any report type set.

What is the expected output? What do you see instead?
Expected report to be generated, but it is not.
Message:
[info] Creating reports in D:\report_path
[info] Created xml report
with no report name shown.

Please use labels and text to provide additional information.

The following code seems to cause the problem:
MbUnit.Core.Reports.ReportBase.Render(ReportResult result)
if (Environment.GetEnvironmentVariable("cor_enable_profiling") == "1")
{
    return "";
}