Gerardo alerted me to the fact that PT110 is indicating an error on the H0:VAC-LX_Y0_PT110_ERROR channel. I logged in to h0vaclx and traced this to an unexpected value for the info data state readout. This should be 8 but is reading 15368. I don't know why or what 15368 means. He indicated that this appeared after they swapped in this gauge for another, so I suspect that this is the issue somehow.