I logged in this morning to check how the ITMY-HWS ran overnight. It seemed to be running relatively normally until around 2:50UTC when it just stopped (HWSX was running fine).
I logged into H1HWSMSR and attached to the tmux session. Through some investigations and irregularities, I eventually realized that there were three tmux sessions running and two instances of the HWSX and two instances of the HWSY code running. Clearly this is not ideal.
We'll have to figure out how to prevent additional tmux sessions from being started, but until then, please take care not to start extra sessions (always use the syntax tmux attach).
I don't know if multiple sessions fighting each other are the reason that the HWSY code stopped taking data, but I can't imagine it helped things.
I killed all HWS code (Run_HWS_ITMX, Run_HWS_ITMY), killed all but one tmux session and then restarted the HWS code. I also added a line to the .bashrc file to indicate the number of active tmux sessions when you log in.