Ryan S and Filiberto remotely are troubleshooting why the fast shutter isn't working now. I just had a look at our last high power lockloss, from MAX power at around 6:45 local time. In that lockloss the fast shutter did function and protect the AS port.
We've had a strange looking AS air camera all afternoon, screenshot of the camera with DRMI locked is attached. Hopefully the shutter issue is just the controller needing to be reset. In the past when the shutter wires were in the beam path towards OM1, the AS camera image did look strange.