Access to USB port not working from PlatformIO - but working in Arduino IDE and in terminal

Just installed the PlatformIO Atom plugin, and can’t get access to the USB working.

In terminal prior to launching Atom:

/etc/udev/rules.d $ groups
jpeterse adm dialout cdrom sudo dip plugdev lpadmin sambashare
/etc/udev/rules.d $ ls -alh /dev/ttyUSB0
crw-rw-rw- 1 root dialout 188, 0 Jul  8 22:28 /dev/ttyUSB0
/etc/udev/rules.d $ ls -alh 99-platformio-udev.rules 
-rw-r--r-- 1 root root 9.2K Jul  4 02:44 99-platformio-udev.rules

Then in Atom, the PlatformIO device list is empty.

pio device list
sh-4.3$ pio device list

sh-4.3$

in the terminal in Atom:

sh-4.3$ groups
jpeterse nfsnobody

I have checked for updates to Atom and PlatformIO, and appear to be on the latest release.

Attached screenshot of access to USB port working from within the Arduino IDE.
arduino_usb_working|690x315

Anyone know why I can’t access the USB port from within the Atom Platform module?