Hi, thanks for sharing this issue.
Restarting your IDE or disabling/enabling NCrunch will always reset the engine. If you're still seeing this problem, it's either behaviour by design or a bug that is recurring every time the engine runs these tests.
It's worth having a look at the
troubleshooting page covering this problem, as it may suggest something that leads you to discover the cause of the issue.
If the above page doesn't help you, could you try submitting a bug report after a full test run? I can examine the trace to see if there has been any obvious problems inside the engine.
Thanks again,
Remco