Snips-skill-server -vvv

My app only runs correctly if I am running the RPi LXTerminal and type in:
snips-skill-server (or the same with variations of -vv or -vvv options)

The app is the app from the snips Console called Relay&Temperature&Humidity…it was running fine until I added in some serial.write code to output serial packet…even without including the code to output the packet in the action-wrapper, the problem occurs, i.e., just opening the serial port effects the issue…

The app runs okay through the recognition of the trigger-word and recognizing the intent, but then when it goes to effect the action, it halts and I get the “…component didn’t respond…" error…

Any thoughts?