Edit the log4j2.xml located at C:\Program Files\Embotics\vCommander\tomcat\common\classes\
Insert the following lines in the Loggers block of the XML
enable script output logging
<Logger level="DEBUG" name="com.embotics.vlm.service.workflow"/>
<Logger level="DEBUG" name="com.embotics.vlm.service.task"/>
The change can take up to 30min to take effect without a vCommander restart. Afterwords you'll get full interpretation of your scripts by vCommander and the corresponding outputs/failiures for troubleshooting.