wx200 shoulder dies on launch of MoveIt2

[drosen20]

I'm experimenting with the ROS2 arm stack with a LoCoBot wx200. I followed along with the MoveIt2 Configuration page in the docs and ran
ros2 launch interbotix_xsarm_moveit xsarm_moveit.launch.py robot_model:=wx200
On launch, the arm initially starts to move but then both motors of the shoulder joint lock and begin to flash red at 1 Hz. I can still plan and execute trajectories in RViz and the other joints seem to respond appropriately.

I tried the equivalent launch in ROS1, i.e.
roslaunch interbotix_xsarm_moveit xsarm_moveit.launch robot_model:=wx200 use_actual:=true
and I got the expected behavior, with all joints functioning to execute the motion.

Any suggestions or ideas on what I might be doing wrong? Thanks!