The IOC is not responding, but the electron detector is at its correct position, and we can continue taking beam, as long we do not need to move the detector.
The auto-analysis result on a recent run (~ 7 am) well after the readback stopped shows the position of the Compton edge to be stable.
https://hallcweb.jlab.org/compton/edetsummary/Run_21848/asum-21848-plane1.jpeg
For records, the event of the IOC getting unresponsive happened without any attempt to the detector.