The DET MAIN automation node was stuck in a loop, because the B1 PD3 offset has drifted and made it think the slow OMC shutter is open while it is actually closed.

Around 09:27 UTC I have updated the B1 PD3 offset by 0.1uW so that the power is zero when there is no beam on the photodiode.

The DET_MAIN node is currently in pause, it should be removed from pose when there is a beam on B1p, for example in NI single bounce.