eDir 886 64-bit
IDM 361 + some engine patches

Sometimes a driver (doesn't have to be the same) won't start.
In iManager its stuck in Starting mode, the icon is pulsating green.
You can stop it but it won't start as it should.
The weird thing is that it produces no logs at all.
Not in the driver trace, not in nsdtrace with DXML and DVRS, not in the
java trace.

It doesn't even seem to load the Java class, in this case it was the DT
driver, we tried to change the class name to xxxxxx so we could see if
it would report an error. Nothing.

Same result if we try to start it using dxcmd.

The "solution" is to restart ndsd.

How do I troubleshoot this?