Hi Henk
Thank you for reporting this bug.
The reason why Motorcortex does not start, is that "actualCyclesArray": "int32[2],PARAMETER_PERSISTENT" results in a FATAL error (this you can check in your command promp with mcx-lastlog). ATM you cannot create an parameter_persistant-array.
We will check and resolve this bug, is this feature urgent?
In the meantime you can create something like:
"actualCyclesArrayIndex0": "int32[1],parameter_persistent",
"actualCyclesArrayIndex1": "int32[1],parameter_persistent",
"actualCyclesArrayIndex2": "int32[1],parameter_persistent"